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2.
The rear end of a person. Often used in gay language.
"I bet that micheal ryder takes it up the hershy highway"

"If teh river flows red, take the Hershy highway"
by Samuel Wilson June 16, 2004
 
1.
Hershy Highway means Anal Sex. PERIOD!
She is a keeper for sure. I got me some Hershy Highway from her! She is a keeper.
by Doug Hightower September 03, 2005
 
3.
Slang for your poop chute.
"Hey, I'll be in the steakhouse ride'n the Hershy Highway if anyone needs me."
by Goober April 05, 2004