fnsf

someone who spends their friday nights at home online

guy 1: hey! where were u on friday nite?
guy2: umm, just at home on WOW/fb/myspace
guy1: ur a fnsf (friday night sad fuck). hahaha sad fuck.

by binkyj December 9, 2008

FNSF

Friend Not-So Friend. Two people who are not in a relationship but have mutual affection towards each other.

“Are Jake and Amy dating?”
“No! They’re FNSF, they’re just vibing.”

by Jackendren October 24, 2020

FNSF

Friend Not-So Friend. A bond between two people who are not in a relationship but having mutual affection towards each other.

"Are Jake and Amy dating?"
"No! They're FNSF, 'cause they're not official yet."

by anonymous October 24, 2020