dabbing on them folks
Dabbing on them folks is when you mess someone up and then do the dab like you're the king of the world. If you mess it up, it just looks like you're being a total loser.
He messed me up and then dabbed me like I was a total nobody.
She sold me the car for $100 and then dabbed me like I was a loser.
He dabbed me after I failed the deal completely.