OFO

It's Used As The Short Form Of Saying "Ok Fuck Off"
It Commomnly Used In Chats

Me :Hey Bro Am Financial Unstable Would You Borrow Me $500
Bro :No Buddy I Dont Have
Me :OFO

SDAB

Short For Shake 'Dat Ass Bitch

Samantha ; You'll need to SDAB at the party if you wanna steal 'em nigga's attention

Jules ; Got You Sis