a massive - The worst thing you can call someone. But if you're cool, it

The worst thing you can call someone. But if you're cool, it can be a compliment. Otherwise, you're just a fool.

"You're a massive fool!", My friend who got kicked out of the game

"Massive? That's the nicest thing you've ever said to me.", My best friend who's also my enemy

"I'm not massive, I'm legendary.", A kid who thinks he's the best at everything