fpnj is an abbreviation for the town florham park, new jersey. people from fpnj, and sometimes not from fpnj, refer to fpnj as this. if you disagree, then you are most likely a liberal yankee prick. and if you don't pop you collar, please, go live in Ohio or Oklahoma, where you belong.
Person 1: hey, dude, where are you from?
Person 2: fpnj!
Person 1: awesome, man! fpnj rocks!
1)Lower Arnold; the part of Arnold, Missouri (see Jefferson County, Missouri) overrun by river-rats and and loose garbage.
2)Reference to anything cheap and in desperate need of replacement.
Don't go to LA. Your car is too nice.