person1: i dun it 4 u
person2: aww fnx
by sam!! xx August 16, 2006
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Fucking X-Wife.

Best used as text short hand.
My fnx is such a crack whore!
by upgray_edd February 07, 2010
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The best radio station in Boston. Period.
FNX really is the "true alterntative"
by AutisticPsycho December 05, 2004
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To be terribly bad and usually in last place, much like WFNX in Boston, MA.
"Dude, you were FNX in that last race you ran. What... someone chop your ankles off?"
by Bart June 17, 2003
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A Badass .45 that comes with 3 15 round magazines, has a threaded barrel, night sights, 5.3 inch stainless barrel and slide and is already made to mount a Red dot on it's slide. It is the only pistol that can have its internal frame rails replaced. It is dead nuts accurate, ask a Foo.
it replaces the FNP that sucked for various reasons.
my FNX 45 Tactical is better than your Glock
by The Prickist AKA Mrrick October 07, 2013
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