look up any word, like blumpkin:
 
1.
JFN
Just Fucking Nuts
That woman is JFN
by levrelesbouche May 03, 2011
 
2.
Just Friends/No Sex ..

A safe, long-term relationship between (male & female).. with no sexual desire at all ..
- Hell no! we're just "jfns" ..
- Yeah you're !!
by Blue Whatsit March 10, 2008
 
3.
jfn
Just for now.

Not forever, only for a little while, could change at any given time, probably only 'for now, for the sex'
Me: Bai, my wicked fit girlfriend
Starr: Bai GF
Me: <3 4evar
Starr: JFN
by luvaroflyf March 10, 2009