1. Meaning "yes or true"
2. A form of asking someone to explain a topic more.
3. Gives sentences emphasis just as the played out term "Swag" would.
4. A form of saying you understand.
Made famous by Chocolate Droppa's XXL Freshmen 2011 Freestyle
1. Guy A: That girl got PHAT ASS!
Guy 2: Brief Dat my nigga, Brief Dat.
2. Guy A: Lebron James is shit. He is really overrated.
Guy B: You wanna Brief Dat, lil nigga?
3. Guy A: AHHHH! HE JUST GOT DUNKED ON!!!!!!
Guy B: BRIEF DAT!
4. Guy A: I want my money by tomorrow, or you getting fucked up. Understand?
Guy B: *Gulps* Breif Dat.