v (American football) An illegal tackle: Throwing the body across the back of an opponent's leg or hitting him from the back below the waist while moving up from behind unless the opponent is a runner or the action is in close line play.
v (computer graphics) To discard (an occluded part of a model or scene) rather than waste resources on rendering it.
n Something which has been clipped; a small portion of a larger whole, especially an excerpt of a larger work.