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A sexy ass individual that usually has a 7in
dick or bigger. He cannot help but to pull all the hoes without even trying.
Girl "Wow. That guy who stole your girlfriend is so fine"
Guy "uhhh he's such a jahnus"
by tht_one_chicken December 07, 2013
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Jahnu is that sexy dude that most girls want. He is funny but pretty stupid. His weak subject is science.
Yo that dude is soo a Jahnu
by Ross Flop April 09, 2018
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