Synonyms for ass Found 38 synonyms across 2 meanings for “ass”. the fleshy part of the human body that you sit on (noun) buttocksnatesarsebuttbacksidebumbunscanfundamenthindquarterskeisterposteriorpratrear slang for sexual intercourse (noun) fuckfuckingscrewscrewingnookynookieshagshtup Explore Related Words Rhymes with assSynonyms for buttocksSynonyms for natesSynonyms for arseSynonyms for buttSynonyms for backside Synonym Finder | Rhyme Finder | Poetry Editor