FNX

The best radio station in Boston. Period.

FNX really is the "true alterntative"

by AutisticPsycho December 5, 2004

FNX

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

fnx

short for thank you as in thanks

person1: i dun it 4 u
person2: aww fnx

by sam!! xx August 16, 2006

fnx

Fucking X-Wife.

Best used as text short hand.

My fnx is such a crack whore!

by upgray_edd February 7, 2010

FNX 45 Tactical

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 7, 2013