When someone has left their facebook account signed in and someone else posts a status on or changes a setting of the account.
That's not my status it's FB Cacography.
Specifically for football Twitter and the numerous virgins on the platform, ‘fb g’ means follow back g.
otherwise known as .."from behind"-- meaning to flip over from your back to your knees in order to assume the position of doggy style
*Note*- fb does not necessarily have to be anal. It can be just as hot when it turns into sexy motion in the ocean with the vagina instead
Ryan-"Wanna go fb?"
Kendra-"Oooh babe, you read my fuckin mind! Fuck yeah, Gil, flip me over babe."
1. Followback
On instagram, somebody could comment one of your pictures "yo can I get a fb?"