bum

How to sign: the fleshy part of the human body that you sit on
"he deserves a good kick in the butt"; "are you going to sit on your fanny and do nothing?";

Similiar / Same: rear end, ass, fanny, derriere, behind, tush, tooshie, buttocks, prat, posterior, keister, hind end, hindquarters, buns, arse, nates, seat, fundament, backside, rump, stern, tail end, bottom, butt, rear, tail

Categories: body part

bum

How to sign: a person who is deemed to be despicable or contemptible
"only a rotter would do that"; "kill the rat"; "throw the bum out"; "you cowardly little pukes!"; "the British call a contemptible person a `git'";

Similiar / Same: rotter, dirty dog, skunk, stinker, stinkpot, puke, lowlife, scum bag, so-and-so, git, crumb, rat

Categories: disagreeable person, unpleasant person

bum

How to sign: be lazy or idle
"Her son is just bumming around all day";

Similiar / Same: bum around, bum about, arse around, arse about, fuck off, loaf, frig around, waste one's time, lounge around, loll around, lounge about, loll

Categories: idle, laze, slug, stagnate

bum

How to sign: a disreputable vagrant
"a homeless tramp"; "he tried to help the really down-and-out bums";

Similiar / Same: tramp, hobo

Categories: drifter, floater, vagabond, vagrant

Within this category: dosser