The act of jewing a friend out in a trivial way
Chris: Damn Fadi triangled my seat, when I went to the bathroom!
by f2dx August 11, 2011
To be savgely attacked.To be beaten like a fat perverts meat. i.e. fast and relentlously
Stevey thought he was rollin deep til he got triangled by some big fuck off mandems.
by Checker May 23, 2005