Anyone that trys to showoff, but fails badly.
My boy became a Joaner when he choked on his banana trying to impress his math teacher.
by trampoline man September 28, 2019
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Erection gained from watching Joan in Mad Men
by yuiopyu October 9, 2010
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When I was little my mom never wanted to swear in front of me so when she was in the kitchen cooking my dad was purposely making her upset so instead of saying "you mother fu***r" she said "you mother joaner!!" Now I'm in college and all my friends say it at school.
You are such a joaner!

Stop being such a joaner!
by Martello25 March 20, 2012
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