1. a vagina that smells like tuna or fish
2. a smelly cunt
"tara has the worse case of tuna twat"
by Criz April 9, 2004
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A stinky firecrotch who sleeps with whoever she possibly can, and then doesn't wash her vagina.
Miranda Lambert has a fat tuna twat and sleeps with her younger siblings friends.
by Thundercats are go! September 6, 2008
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