MJ is Mary-Jane
Slang for Marijuana. From the word Mary-Jane.
Popular term from the mid 1960's Mary-Jane was created from the literal English translation Mari = Mary and Juana = Jane.
-"Hey, how's the MJ?"
*"Its dank, try some."
-"Awesome stuff, I feel it already."
*"MJ's the shit!"
© 1999-2015 Urban Dictionary ®
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