Rumps, noun plural of rump. Synonyms in the same form.
Tail
tails, asses, bottoms, posteriors, buttocks, derrieres, bums, butts, behinds, back-sides, rears, fannies, seats, tushes, tail-ends, fundaments, sterns, cans, pratts, tooshies
Hindquarters of an animal
croups, cruppers
Other
rounds, remainders
All synonyms for rump →