bonegina

Bonegina is when a girl is so thin, you look down and the inline of her pelvis forms the structure of the vagina. Also can mean a vagina with rows and rows of razor sharp teeth.

"That anorexic girl would be nice to tap."
"No, she has a bonegina."

or

"What happened to you man?"
"I got my hand stuck in a bonegina, it ate me a-fucking-live."

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