1) Noun: A Firearm.
2) Noun: A powerful punch, a knockout punch.
3) Noun: sound of a gunshot.
1)"I am running with the blakka!- Lil' Wayne"
2)"I hit him with the blakka!- Blakkaman"
3)"dont worry bout your man thats why i carry the chopper it go blakka blakka, blakka ba blakka blakka'' - Ace hood