n. & adj. sl.
--n.
1. a futile or ineffectual person or thing (a dud at the job).
2 a counterfeit article.
3 a shell etc. that fails to explode.
4 (in pl.) clothes.
--adj.
1. useless, worthless, unsatisfactory or futile.
2 counterfeit.
Etymology: ME: orig. unkn.