get off ass

(redirected from get off butt)

get off one's ass

 and get off one's rear; get off one's butt
Sl. to get up and get busy; to stop loafing and get to work. (Caution with ass. Butt is also offensive to some people.) Get off your ass and get busy! It's time you got off your butt and started to work.
See also: ass, get, off