mad as a hatter

形容词 adj.
中文释义
英 /ˌmæd æz ə ˈhætə/    美 /ˌmæd æz ə ˈhætɚ/

英文释义

形容词 adj.
  1. Crazy or demented. not-comparable
    — He's a very good fellow, but as mad as a hatter. He's called Madman, you know. And never was such a fellow for getting all sorts of rum things about him. He tamed two snakes last half, and used to carry them about in his pocket; and I'll be bound he's got some hedgehogs and rats in his cupboard now, and no one knows what besides.

词源

First recorded 1829. Of uncertain origin, though usually explained as referring to hat-makers suffering from Erethism due to handling mercury-contaminated felt. Derivation from Old English ātor (“poison”) or its descendant English atter lacks evidence.
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