What is give less fucks?

When someone won't shut the hell up about a topic you don't care for.

Person 1: Hey man, did you see the game yesterday?
Person 2: Sorry to burst your proverbial bubble, but I couldn't give less of a fuck

give less fucks - video

Give less fucks - what is it?

To care less about something

“I’m stressed at work” “ you need to give less fucks”