bum

bad, bargain-basement, cheap, cheapjack, cheesy, coarse, common, cut-rate, execrable, gimcrack, inferior, junky, lousy, low-grade, low-rent, mediocre, miserable, poor, rotten, rubbishy, schlock (or schlocky), second-rate, shoddy, sleazy, terrible, trashy, trumpery, wretched

backside, behind, bottom, breech, buns, butt, buttocks, can, cheeks, derriere (or derrière), duff, fanny, hams, haunches, hunkers, posterior, rear, rear end, rump, seat, tail, tail end

chill, dally, dawdle, dillydally, goof (off), hack (around), hang (around or out), idle, kick around, kick back, laze, lazy, loaf, loll, lounge, veg out