fallon rash 

A disease for people from the North. Often linked to poverty, 'Fallon Rash' occurs from a diet of chips, gravy and WKD. Sufferers of 'Fallon Rash' often report an urge to shout 'ey ey ey' as they scratch the itch. A key instigator of the 'Fallon Rash' is mild arousal, built up from slowly rubbing themselves against the arms of their chairs at work

"Yuck, look at her Fallon Rash"
or
"'ey ey ey' - it feels good to stratch my Fallon"

fallon rash by hippyfeet October 9, 2016

underwear rash 

That painful feeling that occurs on the legs due to wearing underwear. When the bottom of the underpants squeezes a section of the leg, an uncomfortable sensation develops and stays long after the underwear is adjusted and/or removed. Ice helps, but the process can be painful itself, and it takes time and patience.

The sole reason this author hates underwear

Damn it. I got an underwear rash. I'm fucked for the rest of the day.

underwear rash by ManMan36 June 11, 2016

capsicum rash

when you get pepper sprayed in the balls and develop a rash

"oh no i got capsicum rash"

capsicum rash by fullcreammilk October 16, 2016

Mental Rash 

The raw mental state created from repeated exposure to unfavorable conditions, as often happens when you dislike your job.
Also, the unfavorable condition itself that causes such a state.

I'm so glad I quit my job today, it's been leaving me with a severe mental rash.
or
I hate my job so much. It's nothing but a mental rash

Mental Rash by Dave-Landon October 23, 2016

chines rash 

when you have a small dick and youve been jerking off to hard it starts to feel raw leading to chines rash

man idk how to tell my girlfriend i got a chines rash

chines rash by peahbutt June 16, 2017

poop rash

Term for that little bit of poop stuck at the bottom of the toilet bowl after you flush down a big one. Usually looks like a streak or a little blemish at the bottom. If you leave one on a friend's toilet you either leave and hope no one notices or feel really guilty about it and try to brush it up.

"Daddy, I pooped at Jodie's house and left a poop rash on the toilet"

poop rash by cyberpunk42 May 29, 2018

Tug rash 

Blisteringly painful friction burns on the Herman Gelmet from excessive masturbation including varying degrees of second hand man utilisation, normally arising from an all day fappathon.

Jimminy Christmas, Batman!

Even the aloe vera cream is useless against my tug rash!

Tug rash by NeONscENe September 5, 2018