Top Definition
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 02, 2010

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