1.) When a group of males sit in a circle, jerking each other off.
2.) *NOT* when a group of males stand in a circle to jerk off onto a cookie or anything of the sort. That retarded frat
game is called "Limp Biscuit"... which kind of indirectly explains why the band of the same namesake is so fucking horrible.
3.) When a bunch of blowhards - usually politicians - get together for a debate but usually end up agreeing with each other's viewpoints to the point of redundancy, stroking each other's egos as if they were extensions of their genitals (ergo, the mastubatory insinuation). Basically, it's what happens when the choir preaches to itself.
4.) A game on MXC
that's based on sumo wrestling. Beware the Green Teabagger.
Circle jerking is fun for the whole family.