j'en ai rien de foutre
I don't care. I'd rather get kicked in the balls than listen to you.
My teacher called me out for talking. I said, 'J'en ai rien de foutre, I'd rather be in jail.'
He lost his job, his dog, and his keys. I said, 'J'en ai rien de foutre, you're a mess.'
She got a C on her test. She said, 'J'en ai rien de foutre, I'm going to eat ice cream.'
xs