Top definition
The act of positioning your hand over your anus and proceeding to fart then applying the cupped hand onto an unsuspecting victims mouth and nose and holding it there steadily for a minimum of 5 seconds.
Mikey held down Teddy while John snuck up and cup and masked him.
by Eric mike n john March 19, 2005
Get the mug
Get a Cup and Mask mug for your dog Sarah.