Acronym - for 'Fuck Off For Now'. Used to end a text conversation when you want it to finish but do not intend to be rude. FOFN is a tongue-in-cheek way of saying: "this conversation is over for now."
FOFN is the FINAL word. Once used, the conversation is OVER.
blah blah blah
blah blah blah (with Texan accent)
SILENCE. The conversation is over!
fuck off for now, get lost untill next time, LOOSER
well is'nt that mature, FOFN
'Fuck off for now' - Passive/aggressive manner of extricating oneself from social network chat without causing immediate offense. Bastardisation of tweenglish 'Ta Ta for now'.
The Pope - So I says to ma bitch 'Get down there'.
The Pope - You still there?
Archbishop of Cantebury - Yeah but look fofn.
The Archbishop is now offline