A fork of Rural Dictionary
F is for friends who do stuff together! U is for you and me! N is for anywhere and any time at all down here in the deep blue sea! - Spongebob Squarepants
F. U. N Song
when someone calls you and you don't want to talk, you press the ignore button on your phone
Person 1: I don't feel like talking to him right now Person 2: Just give them the f-u button
Stands for Friends that do stuff together, You (U) and me, and Anywhere and anytime at all down here in the deep blue sea. Why hasn't this been made, even after a few years?
Guy 1: Hey, let's sing the F. U. N. song from Spongebob Squarepants! Guy 2: No thanks.
a cross betwixt "shut the fuck up" & "fuck you".
man#1"hey man, how...." man#2 "shut the F U!"