Whoops! I'm a CowboyWhoops! I'm a Cowboy! is a 1937 Fleischer Studios animated short film starring Betty Boop.SynopsisBetty's short weakling boyfriend Wiffle Piffle proposes to her. Betty turns him down, saying/singing she's only interested in a "bronco-busting" he-man cowboy. Wiffle sets off for a dude ranch to learn how to become a real cowboy. It doesn't work out so well.