Forcing someone on to the ground, commanding them to open their mouth and place their teeth on the side of a curb or slab of concrete, and then stomping on the back of their head/neck, effectively smashing all of their teeth, breaking their jaw, and possibly killing them.
by Brandon August 8, 2004
A useful technique to use against newbies and annoying people in which the offender's top jaw is placed on a sidewalk and crushed.
by Carve October 8, 2003