Yo mama is so dumb, she spent all her money on free subscriptions!
Dumb Mama
Explanation
Explain Bear
Okay, listen up, buttercup. This joke is all about how dumb your mama is. She's so dense that she actually spent money on things that are supposed to be free. It's like paying for air, which, let's be honest, some folks probably tried to sell you before, dingus.