Slang an amphetamine pill, used as a stimulant
Origin of greenieso called from the color of a common type
- (chiefly Australia, New Zealand, slang, often derogatory) An environmentalist; someone who shows concern for the environment.
- (Australia, by extension) A member of the Green Party.
- (US, Wyoming, derogatory, slang) A person from Colorado; after the color of the Colorado license plate.
- (US, slang) A beginner, a novice.
- (US, slang) A tablet of amphetamine.
From green + -ie.