a vagina. the word originated on a cold Friday night in late December when the words cha-cha and twat were said a the same time to someone on the phone therefore creating the word.
molly:ambyr shoves vegetables up her twat
deanna(said at the same time as twat): cha-cha
Leo:did you just say titwa???
by htfdcgjbdeefv January 8, 2009
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