When one man, in the process of tag teaming a girl, prematurely ejaculates inside said girl before the other guy has a chance to take his turn. There after the premature ejaculator's friend either has to make the all or nothing decision to follow up or call it a day.
"Kyle and I tag teamed this chick. Sure enough about a minute in to it he Gonzo Melvin'd her and I had to follow up. It was the mosting disgusting moment of my life."