bums, derelicts, do-nothings, good-for-nothings, ne'er-do-wells, no-goodniks, no-goods, slackers, vagrants

hoboes(also hobos), sundowners(Australian), tramps, vagabondsdrifters, roamers, transientsbeggars, panhandlersdodgers, goldbricks, shirkersgamines, ragamuffins, urchins, waifsdrones, idlers, lazybones, loafers, slouches, sluggards, slugsdown-and-outs(or down-and-outers), indigents, paupers