To just not giving a flying f***
Someone who just doesn't care about anything
Coach: You guys think you don't give a f***? Come see me in 1998! I was the ringmaster of not giving a f***!
Teacher: You know what, I don't care. I'll just bang out the detentions. You think it's funny? I'll hit you with one from over here. It'll reach.
Jimmy: Wow, what a ringmaster.
I have so much homework but I'm just too much of a ringmaster to do it.