gob·shite (gŏb'shīt') n.
Chiefly British Slang A person regarded as mean or contemptible.
[Perhaps ultimately from obsolete gobshite, wad of expectorated chewing tobacco or tobacco juice : gob2 + dialectal shite, excrement (from Middle English shiten, to defecate, from Old English *scītan; see skei- in Indo-European roots).]