FRN 

Fucking Railroad Nut; used by railroad employees to describe those who watch and/or photograph trains. Usage has recently fallen off with "foamer" being used in many parts of the country instead

We saw a ton of FRNs stopped by the side of the tracks when the steamer was coming.

FRN by Schnauf April 15, 2006

frn 

Federal Reserve Note, a paper printed as to resemble official money, as opposed to gold or silver coin or a United States Note, ostensibly backed by gold and/or silver.

How many FRNs does that cost?

frn by Peter314 January 17, 2004

frn 

Stands for "Face right now".

"Look at this picture of a cute cat. IS IT NOT CUTE?"
"frn -> :D"

"FML, we broke up. frn -> :C"

frn by Thisusernamewasalreadytaken August 23, 2011

FRN 

Acronym for 'Free Ranged Nipple(s)'

A phrasal combination of #FreeTheNipple and Free Ranged Animal Activism - most commonly found with poultry products.

"My boobs are so small that they're nothing more than nipples"
"Might as well ditch the bra and go FRN then"

FRN by Vattify April 22, 2019

FRN 

Abreviation of "For Real Now"

Friend 1: You know what?

Friend 2: What??

Friend 1: I saw a dinosaur

Friend 2: That's cap

Friend 1: FRN my crush asked me out!!!

FRN by XabiPellitero November 24, 2021

FRN 

Favourites right now

my frn for music are: Brandon Flowers and Gerard Way. And I can't wait to see them live!!!!

FRN by IAMMOREOFAGHOSTTHANYOU June 2, 2015

FRN 

Forever real n*ggas

Hey have you’ve heard of the new gang FRN.

FRN by Thatgirl16 June 5, 2020