What is the "I dont give a fuck" You did in school

My fvking gay teacher always yells at me like a biatch even thou i didnt do anything he keeps asking question he didnt even discuss
he calls me and ask about something that i dont even know and of course i didnt answer "Pay attention, So you have answer next time i call you how about that huh?" and i was like "How about discuss it first before you ask jow about that"