An act where a woman is on the top of a bald man giving a 69er. She then intentionally or unintentionally releases messy diarrhea all over his head causing a chocolate hair-like replacement.

In addition, A Bad Hershey Comb-over is when the color of the diarrhea dosen't match the color of his eyebrows.
"Hey Greg, Mike looks 10 years younger since Crystal gave him a Hershey Comb-Over".
by Ray October 25, 2004
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