From Longman Dictionary of Contemporary EnglishRelated topics: Animals, Drug culture, Clothesmulemule /mjuːl/ noun [countable]1HBAan animal that has a donkey and a horse as parents →stubborn as a mule(1)2informalMDD someone who brings illegaldrugs into a country by hiding them on or in their body3[usually plural]DCC a woman’s shoe or slipper that covers the front part of the foot but has no material around the heelExamples from the Corpusmule• They had worked like poorfolks' mules.• The main road to Piedmont, across the pass of Tenda, was suitable only for mules.• It was nerve-racking, having him watch her as she slid her feet out of bed, and pushed them into softmules.• These mulespinners, assisted by women and children, were an elite group in the early textilemills.• Martha says rats are hangingdressed in the market for sale with mulemeat.• On whose side was the young mulesupposed to be?Originmule1. (1200-1300)Old Frenchmul, from Latinmulus2. (1500-1600)FrenchLatinmulleus type of red shoe worn by certain officials