i can't sweat that
That’s not worth my time. I’m not gonna fight for it. It’s not worth my energy. I don’t care.
You forgot my birthday. I can’t sweat that. I was just gonna forget yours too.
He said he’d be here in 10 minutes. He’s still not here. I can’t sweat that.
She broke my favorite cup. I can’t sweat that. I’ve got 10 more.