Definitions by A. Carpenter

grab-assing 

an expression used to refer to the horseplay being committed by others that has become annoying; also refers to horseplay, that by some aspect would likely be annoying and/or offensive to others.

e.g. "Hey! Knock off the grab-ass!" or "Hey! Knock off the grab-assing!"

grab-assing by A. Carpenter June 9, 2007