Urban Dictionary

#3
And if you pinch hard enough what is the sound called that you make when she reflexively bites down?
For some reason this reminds me of the joke where a young woman who is terrified of having dental work done.
She sits in the chair, the dentist puts the white paper bib on her and as he leans over toward her mouth with the drill in his hand she reaches down his pants with both hands , gets a firm grip on his balls and she says "So doc we aren't going to hurt each other — right"
 
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