Originating from the game of golf, an ass shot occurs when a person is playing poorly and then has a very good shot, apparently pulling the shot out of their ass.
Damn, I've been driving it like shit today. At least that ass shot got us a few strokes ahead.
To hold a member of the opposite sex upside down while pouring liquor down the crack of her/his ass while a buddy lays on the ground and slurps it up.
"Jill thinks her last batch of ass shots tasted like her boyfriends dick!"
I heard she is limping like that because her boyfriend gave her a rough ass shot last night.