hybrid offspring of a male donkey and a female horse; usually sterile
"The farmer sighed as he realized his prized mule was too sterile to ever produce its own foal."
The generally sterile male or female hybrid offspring of a male donkey and a female horse.
"After hiking all day in those heavy boots, I slipped off my mules and stretched my toes on the porch."
A shoe that has no fitting or strap around the heel, but which covers the foot.
To smuggle (illegal drugs).
"The undercover agent watched as the corrupt officer tried to mule a small packet of cocaine through airport security before getting caught."
A surname.
"The local history club met at the Mule house to discuss the town's founding families."