Top Definition
Slang for Rohypnol. 542 was imprinted on Roche's 1mg Rohypnol tablets. Rohypnol contains the benzodiazepine Flunitrazepam.
I can't remember anything from last night. Sorry i trashed your appartment, must have been the booze and 542's.
by EvilutionDK February 23, 2010
Ask a question by text.
Person1: hey where does Oliver Clozeof live?
Person2:I dont know just 542 him
by Oliver Clozeof December 31, 2009
542 is usually a key word for Blueboys. The drug or tablet.
Where can i get a card of 542's from?
by Adz519 May 26, 2008
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