The sound made when one makes a crazy block in basketball and or proceeds to dunk the ball.
The sound made when a car crashes.
The sound a Pupoo makes when he is excited.
1. "Did you see that dude in his whip, one sec he was drivin it next thing.... BAAK!
2. (lebron is bout to dunk the ball) Kobe: "BAAK"
3. (playing 2k8 on ps3, james jumps from free throw line) Outcome: BAAK
4. Pupoo: "BAAK, BAAK , BAAK"