- mad as a March hare
- *mad as a hatter & *mad as a march hare1. crazy. (Alludes to the crazy characters in Lewis Carroll's
Alice's Adventures in Wonderland.
*Also: as \mad as a march hare.) •Poor old John is as mad as a hatter.
•All these screaming children are driving me mad as a hatter.
2. angry. (This is a misunderstanding ofmad
in the first sense. *Also: as \mad as a march hare.) •You make me so angry! I'm as mad as a hatter.
•John can't control his temper. He's always mad as a hatter.
* * *See: MAD AS A HATTER.
Dictionary of American idioms. 2013.