a phrase commonly used when one is about to unleash a flurry of insults at someone who has just embarassed themselves , usually resulting in the domination (owning) of him/her.
Bill is obese.
the chair that Bill is sitting in breaks.
Joe: BOUTTA STONE
Boutta-I'm about to
Stone- engage in a long string of insults that allows you to dominate your opponent aka OWN
Bob: 'i think david archuleta is a cool guy'
Jason: 'BOUTTA STONE'