The act of an athlete, preferrably African American, outperforming his opponents who are usually caucasion. Each sports team has at least one Ronell to create a fair environment of competition. This excludes football, basketball, and ofcourse tennis. However quidditch for muggles is the prime example of this.
He's running down the field and wow! He just Ronelled the shit out of the opposing player.
He just got Ronelled hard!