Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Sport, Crimemusclemanmus‧cle‧man /ˈmʌsəlmæn/ noun (plural musclemen /-men/) [countable] 1 DSSTRONG PERSONa man who has developed big strong muscles by doing exercises2 SCCSTRONG PERSONa strong man who is employed to protect someone, usually a criminal ldoceonline.com