booze rash 

a rash following several nights on the beer, caused by blood poisoning.

Hey mate, your holiday in Ibiza must have been a cracker, as your sporting a top booze rash.

booze rash by frostr October 27, 2013

jab rash 

When the man has too quickly skipped through foreplay and tries to jab his erect penis repeated into a dry, very dry vagina; the only thing usually accomplished is a angry irritated vagina. The results of repeated invasion of an improperly lubricated vagina by an impatient erect penis.

One guy says to his buddy, "Hey man, did you score with that hot chick you took home last night?"
His buddy responds, "I think so, when I tried to hit it again this morning, she said she was suffering from "jab rash'."

jab rash by herumgirl November 23, 2013

toilet rash 

Toilet Rash: When a person, usually in shorts or a skirt, exits the restroom with visible imprints of the toilet on their legs and/or cheeks.

Her toilet rash made it obvious she had spent a great deal of time in the restroom.

toilet rash by Lenyo July 9, 2014

Squatters Rash 

The red marks on the tops of your legs left from the resting the elbows on them sitting on a toilet.

That dump was so tedious it gave me "Squatters rash" for hours.

Squatters Rash by MKULTRA March 31, 2015

ally rash 

What one would find on their genitals the morning after a night at the club

Jim woke up to find himself with a bad case of ally rash

ally rash by -x-x-x- May 6, 2015

Wrap rash 

When you use improper or substituting contraception, such a plastic wrap, but the friction causes a rash to develop afterwards.

Boy 1: Bro why you walking like that?

Boy 2: I got real bad wrap rash this weekend when Lisa called and said her parents were out of town. I didn't get a chance to pick up any condoms beforehand.
Boy 1: Aw man that' sucks! At least you got laid!

Wrap rash by xokookiemonsterxo April 16, 2016

pat rash 

When someone's incessant whining gives you a rash.

Stop bitching your giving me a pat rash!

pat rash by Mud Dy February 15, 2017