by Egon117 November 18, 2018

A young dead woman found on the side of a highway.
A term used by police for a Young Missing or possibly dead girl.
A term used by police for a Young Missing or possibly dead girl.
by GuruJee October 8, 2009

a codeword for "Esther Curtis". the 1800's prostitute was a lioness that devoured her young, so when someone calls you a highway unicorn you should take that as a compliment because you are an Esther Curtis.
by SMS (BANGERZ) September 11, 2013

It is basically a sidewalk slammer but the main difference is that you put a Xan in the drink and you meteorically end up on the "highway". Any 40oz will do the trick but served best with Bud Ice.
by Mike Hawk 420 October 18, 2017

Used to describe the anal passage in gay or anal sex. Refers to the yeast extract spread which when smudged on a surface can resemble a smear of poo
'John travels the marmite highway'
by NOTHUMBS September 19, 2008

"I bet that micheal ryder takes it up the hershy highway"
"If teh river flows red, take the Hershy highway"
"If teh river flows red, take the Hershy highway"
by Samuel Wilson June 16, 2004

by Master Unlucky April 17, 2005
