Orace is the mule companion of Flip the Frog in such early 1930s cartoons as The Village Specialist, Spooks, and The Milkman. Orace is a lazy, foul-mouthed character who is meant to serve Flip as a draft animal, but doesn't always do a very good job of it.
Orace was the creation of Ub Iwerks, who had already created a similar-looking character, the horse Horace Horsecollar, for Walt Disney a couple of years earlier.