6
seat(noun, end, back, informal, being)
5
butt(noun, end, informal)
5
behind(noun, end, back, bottom, rear)
5
bottom
5
cheap
5
fanny(noun, end, back, bottom, rear)
5
rump(noun, human, bottom, rear, behind)
4
backside(noun, end, back, bottom, rear)
4
broken
4
buttocks(noun, end)
4
inoperative
4
keister(noun, end, back, beam, can)
4
posterior(noun, end, rear, butt, ass)
4
rear(noun, back, bottom, behind, backside)
4
useless
3
dud
3
fake
3
tail
3
worthless
2
ass(noun, end)
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APASmart Define. (2015). duff thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/duff/thesaurus/synonyms
ChicagoSmart Define. 2015. "duff thesaurus" https://smartdefine.org/duff/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, duff thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/duff/thesaurus/synonyms>.
MLASmart Define. "duff thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/duff/thesaurus/synonyms>