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slang Phencyclidine (a recreational drug more commonly known as "PCP"). Were you guys able to score any gorilla biscuits before the concert?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
gorilla biscuitsand gorilla pills
n. amphetamines. (Drugs.) Stay away from gorilla biscuits. He’s high on gorilla pills.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.