Why Are Idioms, Catchphrases, and Clichés Always Confused?

If you have ever looked up a phrase in three different reference books and found it labeled as an idiom in the first, a catchphrase in the second, and a cliché in the third, you aren’t alone. Even famous lexicographers have struggled to draw clear lines between these categories, often listing the exact same expressions arbitrarily.

The Idiom: Fixed Figurative Meaning

An idiom is an expression whose figurative meaning cannot be deduced from the literal definitions of its individual words (e.g., “kick the bucket” or “on the rocks”). Crucially, high frequency is not a flaw of an idiom, it is how the phrase exists in the language.

For more, see What’s the Difference Between Idioms and Slang?

The Catchphrase: Popularized Spoken Repetition

A catchphrase is a phrase popularized by a specific person, media character, or cultural event that becomes a recognized conversational shorthand (e.g., Hawaii Five-O’s “Book ’em, Danno!”). While catchphrases have specific pop-culture anchors, many eventually evolve into permanent, standalone idioms over time.

Crucially, a catchphrase does not need to be an original or invented piece of language. Everyday, ordinary phrases frequently become catchphrases when a memorable character or media figure adopts them as a signature line. A classic example is Joey Tribbiani’s iconic “How you doin’?” from the television show Friends.

The phrase itself is nothing more than a standard, conversational greeting used millions of times daily. However, when delivered with a specific cadence, vocal stress, and recurring character context, the mundane sentence transforms into a recognized pop-culture catchphrase, proving that delivery and cultural attribution, rather than verbal novelty, are what define the category.

The “Cliché” Label: A Judgment, Not a Category

Unlike an idiom or a catchphrase, a “cliché” is not an actual linguistic category. It is instead a critique of style. Calling a widely used idiom “hackneyed” or “clichéd” mistakes the core feature of idiomatic language (repetition and familiarity) for poor writing.

Consider the idiom “that’s about the size of it.” It appears regularly in reference books like Christine Ammer’s The Dictionary of Clichés, where everyday idioms are framed as overused platitudes.

Yet, from a functional perspective, the phrase is a masterpiece of linguistic economy. It allows a speaker to say in six rapid words what would otherwise require a clunky, clinical explanation: “that is an approximately accurate summary of the current situation.” It compresses a nuanced, pragmatic idea, acknowledging that a summary is roughly accurate without committing to every single micro-detail, into six fast, effortless words. Linguists call this economy of expression.

Idioms often achieves widespread adoption because because they solve a real communicative need. Calling an idiom “hackneyed” isn’t a linguistic critique, but rather stylistic snobbery masquerading as lexicography. This is a failure to understand how language actually works. The frequent use of an idiom isn’t a bug, it’s a feature. It is, in fact, the very proof of the idiom’s utility.

The “Overuse” Fallacy: Why Frequency Does Not Equal a Cliché

A common assertion found across popular grammar sites claims: “An idiom is a figurative expression, while a cliché is an overused phrase… all idioms, when overused, can become clichés.”

This statement is the very heart of the misunderstanding. It confuses everyday linguistic utility with stale literary style. If high frequency and repetition were all it took to turn a standard phrase into a “cliché,” then virtually all human speech would be ruined:

Is “go to bed” a cliché because millions of people say it every night?
Is “how are you?” a cliché because it is spoken billions of times a day?
Are “give me a second,” “have a nice day,” or “turn off the lights” clichés simply because they are familiar, repeated, and permanent?

Of course not. They are standard, high-utility phrases that allow human beings to coordinate life quickly and effortlessly. Everyday idioms, like “right off the bat,” “on the rocks,” or “hit the sack”, serve the exact same purpose. They are not “overused” metaphors waiting to be retired; they are fixed, permanent tools of communication whose frequency is proof of their effectiveness, not a stylistic flaw.

The Blame Game: Institutional Authority and Commercial Publishing

How did this category confusion become so deeply entrenched? Two primary forces are to blame: the unquestioned authority given to eccentric early compilers, and the profit-driven recycling of reference books by major publishers.

The “Brothers Grimm” of Lexicography: Eric Partridge

Much of the modern confusion surrounding catchphrases and idioms can be traced directly back to mid-20th-century folk-collectors like Eric Partridge. While Partridge was a dedicated recorder of British and American slang, his classification methods were notoriously subjective and haphazard.

In works like his Dictionary of Catch Phrases, Partridge routinely swept standard idioms, dialect expressions, and proverb fragments into the “catchphrase” bucket simply because he happened to hear them spoken frequently. Worse, his entries were often written in an indecipherable, eccentric shorthand that subsequent writers have spent decades untangling. Even today, new “catchphrase” compilations are frequently nothing more than hand-picked entries from Partridge, with his cryptic notes ironed out into standard prose, repackaging his arbitrary decisions as established linguistic fact.

The Subjective Trap: Melodrama vs. Everyday Utility

When compiling lists of “clichés,” lexicographers inevitably fall into an arbitrary trap. Some compilers, like Eric Partridge, despite his claims otherwise, targeted phrases whose theatricality or archaic imagery bothered their personal sensibilities (such as “darken my door” or “at daggers drawn”), mistaking dramatic flair for bad style.

Others cast an even wider net, branding foundational, everyday idioms like “be all ears” or “cost an arm and a leg” as hackneyed. The irony is that linguists themselves still debate the exact boundary of what makes a phrase an “idiom.” Trying to build a systematic dictionary around a subjective critique like “cliché” is impossible, it attempts to impose rigid judgment on a category of language that isn’t even rigidly defined to begin with.

Commercial Re-Skinning: Selling the Same Book Thrice

The confusion is further amplified by commercial publishing tactics. To cover as many retail niches as possible, major reference publishers routinely publish the exact same underlying list of phrases under entirely different titles:

One year, it is marketed as a Dictionary of Idioms for English language learners.
The next year, the same database is skimmed and packaged as a Dictionary of Everyday Catchphrases for pop-culture enthusiasts.
The following year, the publisher re-skins it as a Dictionary of Clichés for writers to avoid.

This creates a circular, self-referential loop where a phrase’s category is determined not by its linguistic structure, but by whichever book jacket it happens to appear under.

Why “Cliché Dictionaries” Have Zero Linguistic Value

At its core, a book dedicated to “hackneyed phrases and clichés” has no scholarly or linguistic utility. Language reference works exist to record how human beings communicate, how meaning is constructed, and how expressions evolve over time. A dictionary of clichés, by contrast, is merely a bound collection of subjective opinions about literary style masquerading as lexicography.

When an idiom like “that’s about the size of it” or “right off the bat” is labeled a cliché, we should never blame the phrase, itself. Only the compiler is to blame, for they have failed to recognize that high frequency and immediate utility are the very hallmarks of successful language.

The “Self-Cleaning” Tendency of Language

Style guides frequently warn writers to avoid “overused” phrases, listing expressions like “all systems go” alongside everyday idioms. But this panic ignores a basic reality of how language evolves: useless or redundant phrases die out on their own.

When a catchphrase is purely trendy, rigid, or redundant, speakers naturally stop using it once the novelty wears off. Idioms don’t survive for centuries because people are lazy! They survive because they communicate complex emotional or pragmatic context that flat literal words simply cannot replicate.

The Real-World Harm: Why “Anti-Frequency” Teaching Hurts Learners

This endless categorizing and shaming of frequent language isn’t just an academic annoyance, it actively damages how English is taught around the world.

Influenced by style guides, cliché dictionaries, and arbitrary “catchphrase” lists, many educators and online language gurus have come to believe that frequency is a sin. They routinely advise English learners to abandon the most common 3,000 words in the language, the very bedrock of natural communication, in favor of longer, rarer, and supposedly “more advanced” alternatives.

The “Don’t Say VERY” Trap

Search any language-learning channel today and you will find endless videos warning students: “Stop saying VERY!” or “Never say ‘good’ or ‘said’!” Learners are instructed to swap simple, perfectly functional words for complex vocabulary that native speakers rarely use in casual conversation.

The result is a generation of non-native speakers who sound like a walking thesaurus, stiff, overly formal, and unnatural. When a learner is taught that high-frequency idioms like “right off the bat” or “that’s about the size of it” are “hackneyed clichés” to be avoided, they are being stripped of the exact conversational tools native speakers rely on every day for rapid, effortless connection.

Frequency Is Utility, Not a Defect

Language reference books and educators must stop treating stylistic preference as linguistic law. A word or idiom isn’t overused because people are lazy but only because it works. Until we separate subjective writing advice from objective language analysis, we will continue to penalize learners for speaking the language as it is actually used in the real world.