giving 1 guy a blowjob and 2 guys handjobs simultaneously, and alternate between the 3 of them every minute or so.
(basically a girl having a dick in her mouth and 2 dicks in her hands) while she is performing the "The Tri-Cock" she must suck the dick in her mouth and then tug on the other two in order to correctly portray the cock flapping motion of the legendary "TRI-COCK.
by Barnibee September 2, 2010
name for a female you and two other friends do kinky sexual shit to at the same time, the act of fucking a chick with two other buddies, also the celebratory cry you call out to your bros when the three of you see each other after gangbanging a chick
"Guys, check it out! Isn't that tri-cock over there?" "Yeah, sure is man." "Haha, maybe we should go talk to her and see if she wants three cocks in her again, haha." slap, slap, slap, "tri-cock!" all three high five and yell together
by snowspark6 September 7, 2008