Top Definition
A vat that is full of cum; to wit, a slut who's had a lot of pricks in her.

See: hilary duff
That hilary duff is such a cumvat
by Spatvark October 31, 2003
1 Word related to cumvat
a girl that you come on just becouse she'll let you.
you fucked that girl at the bowling ally? she's a fucking cumvat!
by Big Matt. yep its me January 20, 2003

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