Top Definition
A term pertaing to when a gay male and a lesbian female have sexual intercorse when drunk. It is considered trisex because it is a gay, a lesbian, and heterosexual sex.
Dude, the other night when i got drunk off my ass, i had a little trisex action. Well, not a little...lol!
by Cum%Andrew%Dumpster October 21, 2007

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