rubber rash

when you masturbate so many times your cock gets hot and begins to smell like burning rubber.

father- what happened to all my Bengay?
son- o sorry pops i needed it cool my rubber rash
father-

by rawdogkilla November 7, 2013

head rash

The burning sensation that happens to the head of your penis while pressed up against the zipper of your pants for a long period of time

Judy, I got some serious head rash from our dry sex-capade last night

by RidiculousIsHe February 27, 2015

canadian rash

Post-shaving rash on testicles caused by cold wind and harsh Canadian winter weather.

Tom got ready for a hot night with his girlfriend and decided to shave accordingly. Unfortunately he did not check the weather and got a Canadian rash on his way there. Tom could not deliver the goods.

by Mnao January 13, 2016

Persian Rash

Rug burns on the feet, legs, knees arms or face from vigorous sex on the carpet.

I was hitting it so good from behind with her ass up and face down in the shag she wound up with the Persian rash on the left side of her face.

My knees are covered in Persian rash after taking it doggy last night.

What is wrong with your knees and elbows? Looks like you had a skateboard accident. Naaaahhh I’m good. Just the Persian rash.

by Eaton Holgoode January 15, 2019

Wife Rash

Wife Rash: Identical to curb rash on an automobile, typically on your high end rims from parking to close to the curb.

Also could be deemed as "Number Rash", caused by pulling into a parking space too far, one that usually has a triangular isolated curb made out of concrete.
"Wife Rash"is a term designated to reveal the true culprit of the damage done to the vehicle.

Car owner discussing a repair quote with an auto detailer or rim repair shop: "I need a quote on refinishing my rims as well as removing the Wife Rash."

by Incognito Ally July 2, 2020

rez rash

A slang term used by natives to describe a neck/chest full off several dark and/or oversized hickies.

The morning after the party, she woke to find herself covered in rez rash.

by Gervicious May 3, 2021

Fart Rash

When you fart so hard, the pressure peels of your butt skin and leaves a skin rash.

Omg, I had Mexican food yesterday and caught myself a severe case of Fart Rash while slipping one out.

by tomatkaster October 26, 2021