bust-ups bust a gut bust up bust your butt/chops/hump bust a little something up increase and bust bust your ass (doing a thing/to complete one thing) bust your butt/chops/hump (carrying out a thing/to carry out something) bust your chops/butt/hump (undertaking some thing/to perform one thing) bust your hump/butt/chops (accomplishing a thing/to per