A violent and rather unpleasent meeting between two football players.
In fact, collisions are the reason behind the NFL moving to flag football.
by Leo Baker November 02, 2012
1 more definition
The Runescape clan famous for raping eternal honour in the longest pkri in runescape history.
Did you hear about collision? I heard they tore eternal honour a new butt hole.
by Collision February 12, 2008