To throw down; to drop knowledge/bombs/etc; to lay down the god damn sauce; to reveal information; or to make rapid advancements upon previously unknown prey.
Emmett: Yo, bro, I was fuckin' droppin' hammers last night!!
Me: What'd you do?
Emmett: I told this girl, she should be suckin' my dick, and then SHE WAS!
Mac: Yo, so I told this bitch what was up.
Alex: Fuckin' DROPPIN' HAMMERS.
