An idiot, or unpleasant person, used in the same way as douchebag, but more emphatic; one who dwells in twats, much like a buttmonkey dwells in butts
Each girl that Chuck goes for is sluttier and sluttier. He's such a twatmonkey
by JessicaLS February 23, 2006
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Seamonkeys crossbred with crabs, they often spread by swinging from clit to clit, leaving a trail of little semen behind, or in your behind.
My mother says her husband is a real twatmonkey!
by Nicholas Gerrier December 3, 2004
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