Can you break your butt?

Okay so my boyfriend fell down the stairs today and he keeps saying he "broke his butt and his left "butt cheek is numb" and I keep telling him you can not break your butt your tail bone is another story how can I make him understand that you can't not brake it and I can't stop laughing since I fell down the stairs texting but its so funny how I make him under stand that your butt is something you can break?
Can you break your butt?
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