a term combining rock out and break out generally referring to dancing
"this jungle is soo sick that you can't help but to brock out"
-verb- To act in a highly irrational, aggressive and rude manner. Often the result of excess alcohol consumption. Actions can sometimes involve violence, swearing, involuntary body movements.
"Uh oh, is that the brock calling for Danga?"
"I can't believe that Danga just insulted that guy for no reason. What a brock out."