gravel rash 

The horribly painful rash one gets after tripping and falling, or 'pavement surfing' as it's often called.

"I fell on my face and now I have gravel rash on my face, down my arm, down my leg and on my arse"

gravel rash by Skankerchank May 22, 2005

gravel rash 

Gravel rash is a term used in the gay community, to describe their first anal sex experience, as often the sphincter is very tight, and may produce a rash on the tip and shaft of the erect penis.

Trent: "Man, my first anal sex with a guy gave me the biggest gravel rash on my fucken knob aye! Luckily with time, the wounds have healed and so has my gay sex life!"

gravel rash by omg i am wtf uber November 8, 2006

grovel rash 

A disease resulting from suckholing to the boss.

Man hes got a good case of grovel rash.

No chance of a bonus this year.

grovel rash by kennyrg February 16, 2010

grave rash 

An STD which one contracts following a sexual encounter with a crusty corpse. The precise cause is unknown, but likely results from the deceased having had any or all of the following: chlamydia, gonorrhea, crabs.

Friend 1:(While scratching genital region) Ugh, I think I caught something from your grandma last night.
Friend 2: Dude, my granny's dead.
Friend 1: I know, I almost threw my back out digging the bitch up, then she gives me a raging case of grave rash!

grave rash by Twig'n'Barry February 19, 2014