Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective
Demented orcrazy .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Disputed. Possibly from Old English ātor ("poison"), and thus related to English atter. Alternatively from hat-makers suffering from Korsakoff's syndrome due to handling mercury-contaminated felt.
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Examples
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Dan337 commented on the word mad as a hatter
Comparative form of mad as a hat.
January 29, 2011