There aren't rules on what can be said during a rap battle, but each participant will be held accountable for every word they spit. This is a lesson one rapper learned the hard way. 

Footage of a rap battle has started to circulate featuring a white rapper—who VladTV identified as William Wolf—being punched in the mouth by his black opponent for calling him a "n***a." 

In the full video, Wolf taunts his opponent by telling him that if he doesn't "steal [hit] him in the third round" then it's not a battle. It also appears the other rapper told Wolf not to use "n***a" in his bars. 

"And you told me what not to say," Wolf said 15 seconds into the video. "Now, I'ma say it." 

As the battle began, Wolf started to set the stage to drop the N-bomb. "I ain’t like these other battle rappers, they talk too much/Saying I can’t say the N-word in this battle," Wolf raps. But before he could finish the next line, which started with the phrase "my n***a," he was hit in the face by the other contestant. 

The spectators quickly intervened, stopping the situation from escalating. As the clip started to gain traction on social media, most viewers felt like the opponent had every right to hit the white rapper.