moody

Definitions

General English

  • adjective often in a bad temper; changing quickly from being in a good mood to a bad one.

Slang

  • adjective illegal, counterfeit, of dubious value, quality or provenance. A London working-class term which, from the late 1980s, began to spread into fashionable youth parlance.
http://www.dictionarycentral.com/definition/moody.html