acronym for 'go fuck yourself bitch'. often times the b can be replaced with k or r for kindly and roughly, respectively. used primarily in text messages, to convey the answer no or to end the conversation.
by mikillo December 12, 2009
Jade: I can't believe gas prices are so high! Good think my dad always fills the tank for me!
Nadia: Gfyb.
Nadia: Gfyb.
by thedevilwearsnadia May 19, 2011
by A Dirty Cunt November 11, 2009