From Longman Dictionary of Contemporary Englishbusboybus‧boy /ˈbʌsbɔɪ/ noun [countable] American EnglishDLDF a young man whose job is to take away dirty dishes from the tables in a restaurant
Examples from the Corpus
busboy• A woman in a Chanel suit squeezes past a busboy and peers into the kitchen.• A busboy kills time by folding napkins.• Each section is staffed by waiters and busboys who serve the plated meals to the passengers.• For upstairs they hired the smallest, lightest busboy they could find.• One of my busboys commutes from a rented house in Fairfield.• The new busboy, Morton, boxed in his spare time.Origin busboy (1900-2000) omnibus “helper in a restaurant” ((19-20 centuries)) (from Latin; → OMNIBUS1) + boy