I think I'm gonna make fun of someone's weight in a debate.
Do you think it is a good idea to make fun of their weight?
Yep, that's why I'm going to do it.
That's a mean and nasty thing to do. It's shallow for you to make fun of another debater's weight. Saying hurtful things will only cause animosity and division.
My other teammate is on my side.
That doesn't matter, taking a shot at someone for their weight is a low blow. You're only going to make yourself seem foolish and detract from whatever point you're trying to make in the debate.