沒有用處的無用的人,飯桶
good-for-naught adj : without merit; "a sorry horse"; "a sorry excuse"; "a lazy no-count, good-for-nothing goldbrick"; "the car was a no-good piece of junk" [syn: {good-for-nothing}, {meritless}, {no-account}, {no-count}, {no-good}, {sorry}] n : an idle worthless person [syn: {goldbrick}, {goof-off}, {ne'er-do-well}, {good-for-nothing}]