A term usually used in video games. The act of jumping on top of someone or something to kill/destroy it. Much like jumping on Goomba's in the Mario games.
Player1: Dude, I totally Goomba-stomped the guy at the bottom of the elevator shaft.
Admin: Goomba stomping is not allowed!
Admin: Goomba stomping is not allowed!
by Hardcore Bob June 12, 2011