bum
noun
°The buttocks.
"Okay, everyone sit on your bum and try and touch your toes."
°The anus.
verb
°To sodomize; to engage in anal sex.
°To ask someone to give one (something) for free; to beg for something.
adjective
°Of poor quality or highly undesirable.
°Unfair.
synonyms: arse, ass, backside, behind more» , bottom, butt, heinie, fanny, tush, tushie, butt cheeks, buttocks, cheek, glutes, gluteus maximus, anus, arsehole, asshole, hobo, homeless, tramp, vagrant, wanderer, vagabond, loafer, bumpkin, footler, idler, lout, yob, yobbo, layabout, binge, bender, cadge, duff