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1.
a fake person, poser, poseur, someone who tries too hard to fit in, not true to themselves

the greatest clothing company ever made! started on long island and went international.
yo that fony zip up is the shit.

true
by Fony_will_kill June 30, 2005
 
2.
Pretending to be hood or gansta or fake or an act.
man you aint real you a fony.
by Joshua Thurman January 11, 2008