A man walks in to the doctor.
He says, "Doctor, I need a new butt. Mine has a crack in it."
Doctor: How many times do I have to tell you!!!
Cracked Butt
Explanation
Explain Bear
Listen up, buttercup. This joke is about a dude who thinks he can just waltz into a doctor's office and demand a new butt 'cause his has a crack? Like the doc hasn't heard it a million times? It's funny 'cause it's so damn stupid! You probably think you can get a new brain too, huh?