I can guarantee you that in every conversation there is a turning point where one voice dominates over the other. At this turning point the parties either reach a contentious or one breaks down and turns the remaining conversation into a “shit show”, or a “pissing fight”.
It’s not all done with words, but you’ll know it when you see it. For example when you’ve found yourself the target of a bully, the subject of gossip and lies – while you have a new problem to handle – the debate is over … and you’ve won. The loser is just trying to delegitimize your point by attacking your character rather than your argument, which has already been found to be immutable.