Similar to a backpack, a nylon-mesh sack that Negroes use to store various illegal items, such as weapons and drugs.
Usually have And1 or Air Jordan logos on them.
Jamal: "Yo Tyrese, whatchu got in that blackpack my nigga?!"
Tyrese: "Just my Glock, some weed, some crack and my wife's dead body..."
Jamal: "That's tight, but yo black ass needs to get some And1 nigga!"