1) a v scrumptious sweeticle, black n long
2) a security guard or
bouncer (occasionally a police officer)
3) at party, any kind of authority like a
teacher or a parent
1) "mom, you
eat all fuckin 8 of dem blackjacks?"
2) "hold up, dat blackjack's onto us he's been skirtin round for 10 mins"
3) "dem fuckin blackjacks like to sneak up don't they? swift bastards"
"
stop skumpin, blackjack 10 o'clock, bringin sausage rolls"