Mule
Part of speech: noun
Definition: A generally sterile hybrid offspring of a male donkey and a female horse. A generally sterile hybrid offspring of any two species of animals. A stubborn person. A person paid to smuggle drugs. A woman's shoe that has no fitting or strap around the heel
Jackass
Part of speech: proper noun
Definition: A jack and an ace as a starting hand in Texas hold 'em due to phonetic similarity
Part of speech: noun
Definition: A male donkey.A foolish or stupid person.An inappropriately rude or obnoxious person.
Part of speech: verb
Definition: To behave very obnoxiously.