rod rash

(noun. coined by Antenna)
1. The rash a man gets on the sides of his schlong when a woman has pussy brillo.

2. Rash on a rod from excessive fucking.

That broad I banged was just a quickie but her pussy brillo gave me rod rash.

by Antenna Wilde February 21, 2008

trash rash

An STD you get from a really trashy girl/guy.

Toothless Tammy blew me and now I've got the trash rash

by TheDukeOfPuke January 5, 2007

Rash Nut

When the nut comes out rash.

"Yo dude this next nut finna be dumb thick."

"Damn thats gonna be one rash nut."

by That guy to your left February 1, 2017

Rash the denom

Hip Slang used by math teachers for the algebraic property "rationalizing the denominator"

Dont worry Brittany, you dont have to extend any lines. Just Rash the Denom

by Crosswell Student March 2, 2010

Johnny Rash

When you’re on the beach too long in wet bathing suit that rubs against your skin and causes you to develop a rash. Native to the southern jersey shore. Vive la resistance.

“Damn I got Johnny Rash (aKa JR) again from getting drunk with the circ on the beach and sitting in my wet bathing suit”

by Trent R. Glass July 17, 2021

Ham Rash

When your having sex doggy style, and the rubbing of sweaty hairy legs creates a rash.

He was cute, but he gave her ham rash.

by Mcwhit April 23, 2021

stubble rash

Getting a rash/sore chin from kissing a guy with beard stubble. Same as Beard burn.

I got such a bad stubble rash from snogging Paul last night, it's going to take days for it to calm down.

by smurfette33 May 17, 2014