I don't give half a fuck - You're so indifferent that you're only willing to throw out

You're so indifferent that you're only willing to throw out half the usual amount of profanity.

My dad yelled at me for eating cereal for dinner. I said, 'I don’t give half a fuck.'

I got a B on my test. I said, 'I don’t give half a fuck.'

My neighbor’s loud music woke me up. I said, 'I don’t give half a fuck.'