Mad as a Hatter

Also: Mad as a March hare Meaning of Idiom ‘As Mad as a Hatter’ To be as mad as a hatter means to be completely insane or demented. 1 Kirkpatrick, Elizabeth M. The Wordsworth Dictionary of Idioms. Ware: Wordsworth, 1995.,2Ammer, Christine. American Heritage Dictionary of Idioms. Boston: Houghton Mifflin Harcourt, 2013. Examples of Use “We never went near Mr. Blackwell’s house. … Read more