downer

Definitions

General English

Publishing

Slang

  • noun a tranquillising or sedative drug (especially a barbiturate) in the language of illicit drug users (as opposed to uppers or stimulant drugs)
  • noun a depressing or boring experience. From the slang of American hipsters of the 1950s, widespread in the English-speaking world since the 1960s, but now sounding rather dated in British English; although the phrase ‘on a downer’ (going through a depressed or unlucky phase) is currently widespread.
http://www.dictionarycentral.com/definition/downer.html