A muscle slut is someone who has a reverent appreciation for muscular body types or someone who, themselves, is muscular and identifies as a slut. The term is also used more broadly to refer to someone who embraces being fit and muscular.
Origins of the Term
Muscle slut does not appear to have a single documented coinage. The phrase likely developed as slang within gay/queer muscle culture and bodybuilding-adjacent desire, then overlapped with muscle worship and body-worship kink communities. By 1996, it was appearing gay personal ads. Later, the phrase circulated through online handles, fetish/muscle-worship spaces, slang dictionaries, and novelty merchandise.
