FOFB 

Friends On FaceBook

When posting on facebook: 'Okay all FOFB, I am now officially a linguist!'
'We are FOFB'. Similar to saying: we are BFF:s
A type of friendship. Friends on Facebook is not necessarily a real friend.

FOFB by krite April 28, 2011

FOFB 

The slang term for Fuck Off Fat Bitch

Oi you FOFB

FOFB by Yeetord February 14, 2020