Mad As a Hatter

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Absolutely mad, weird, odd

Etymology:

  • This idiom originated back in the early 19th century. The origin was might taken from a snake called an adder. British people assumed that if adder will bite them they will get insane. Mostly people pronounced ‘adder’ as ‘atter’ that later turned into ‘hatter’.  So if you act crazy, it means you’re getting ‘mad as an atter’ or ‘mad as a hatter’. Another origin might have been taken from the felt-hat factories where people worked in the 19th century who inhaled fumes of mercuric nitrate. It caused the development of jerks, muddled their speech and grew mystified. Their condition was often taken as madness and therefore they were called ‘mad as a hatter’.       
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Sam always remains mad as a hatter, but he is my lovely friend.

Submitted on February 25, 2019

Additional definitions for 'Mad As a Hatter':

mad as a hatterDemented or crazy.
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Nearby phrases

Some more phrases from our dictionary similar to Mad As a Hatter

How to pronounce this phrase?

  1. Alex
    Alex
    US English
    Daniel
    Daniel
    British
    Karen
    Karen
    Australian
    Veena
    Veena
    Indian

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"Mad As a Hatter." Phrases.com. STANDS4 LLC, 2020. Web. 26 Feb. 2020. <https://www.phrases.com/phrase/mad-as-a-hatter_44845>.

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