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Fuck Boy Disease or FBD, is when a girl gets attached to a fuckboy after him 'hitting her up' or 'sliding into her dm's'.
Ashley: Oooh Brad just messaged me.
Bella: Brad is such a Fuckboy.
Ashley: And?
Bella: Don't go catching a case of Fuck Boy Disease.
by kcn April 17, 2017
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