Top definition
When you are getting a blow job and you punch the top of the girls head really hard, so that her teeth clamp down and bite your penis.
"Scott was into S&M and surprises, so he decided to give Mary a bobbitt punch when she least expected it!"
by Scott Stiner March 21, 2008
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug