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For women: A grimpa is a woman who has a bad attitude, is rude to people, speaks condescending to people, is loud and obnoxious, and/or someone who can't be tolerated in general. Synonymous with bitch, cunt, etc.

For men: A grimpa is an all around dick/douche.
Shut up Mary you're such a freaking grimpa...
by shicaca08 August 26, 2011
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