WordNet (r) 3.0 (2006):

meanie
    n 1: a person of mean disposition [syn: meanie, meany,
         unkind person]

Moby Thesaurus II by Grady Ward, 1.0:

19 Moby Thesaurus words for "meanie":
   SOB, bastard, bugger, creep, fart, heel, hood, hooligan, jerk,
   louse, mother, pill, rat, shit, shithead, shitheel, stinkard,
   stinker, turd