Doing the best at whatever your doing. You stand out above everybody else; the supreme.
B-Money: Dang Mesha! That test was straight up hard. But i bet you passed wit' flying colors, huh?
Mesha: Yea boo I was slabbin' on that test. I was the first one done.
B-Money: You be slabbin' on er'body in er' thing. Go on wit' yo bad self.
Mesha : You know I'm always gone be slabbin' regaurdless of any situation.