WordNet sense 1 (a shaped mass of baked bread):

loaf of bread

WordNet sense 2 (be lazy or idle):

bum, loll, arse around, arse about, bum about, bum around, frig around, loll around, lounge about, lounge around, waste one's time, fuck off

WordNet sense 3 (be about):

lallygag, linger, loiter, lollygag, lounge, lurk, tarry, footle, tarry, hang around, mess about, mill about, mill around