The MJ's stands for the Magic Johnson's - which is a comical way of saying that a person has HIV
Brad: "Suzy, you don't look too great"

Suzy: "I don't feel good at all, I've been having hot and cold flashes, and my body aches, what do you think it can be?"

Brad: "I don't know, sounds like you've got a case of the MJ's "
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Mj's are usually chill type of person and usually pretty cute
You know mj?

Yee he is pretty chill
by Msjshshdiejns he isosjd July 28, 2018
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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!"
by MJ is Mary-Jane December 04, 2011
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the baddest bitch of dem all🤪😛. will turn all y’all gay in an instant boo🥵 life of da party😆 big booty bitch👏🍑
guy 1: oooo who’s that hottie
guy 2: oh that’s just Mj
by MJ penis February 17, 2019
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