L Statement - A dumb line you drop in a debate that makes you look like a

A dumb line you drop in a debate that makes you look like a total idiot and you're automatically the loser

He said, 'You're just mad because I'm smart,' after I proved him wrong with a simple fact.

I said, 'You're just fake,' even though he had real evidence.

She said, 'You're the worst,' and then she failed the debate.