Rash Stache 

A rash or red area on the upper lip that appears similar to that of a mustache. Sometimes caused by dry-shaving, waxing, or some type of allergic response to something.

Guy 1: "Becky was looking so hot today, but she really shouldn't have gotten her upper lip waxed. It left a massive rash stache."

Guy 2: "Yeah, but I'd still ride that ass like a monkey on a tricycle."

Rash Stache by Dick Shanary February 26, 2009

Stache Rash 

The inevitable rash one gets after experiencing oral delight from another, possessing an outdated facial pattern called a mustache.

- Hey baby, wanna show me your O face?
- Hell no, the stache rash you gave me last night still hurts.

Stache Rash by youwantmystacherash August 24, 2008

Rashtache 

Irritated skin on your upper lip, making it look like a mustache, which is especially unfortunate for females

After using Nair on her upper lip to remove her girl mustache DESPITE the instructions not to use it on the face, Kaitlin was rewarded with a handsomely dark rashtache

Rashtache by ispeaktheruth May 10, 2009

Rushstache 

A mustache grown specifically for the viewing pleasure of the Canadian fast paced classic rock band RUSH.

Dude what's with the derty stache?
Man, I'm growing a Rushstache, the Rush concert's in two days!

Rushstache by NeilPeartInsideMe July 18, 2010

Rashstache 

When a person(most likely female), attempts to remove unwanted upper-lip facial hair with a lotion or chemical remover(like Nair), and either leaves it on too long, or experiences an allergic reaction.

Today, I wanted to look really good for my date. I was a little self-conscious, so I decided to use Nair on my upper lip just in case I had a female mustache. Unfortunately, it turns out I'm allergic to Nair. Now I DO have a mustache. A rashstache.

Rashstache by 2legit2legit2quit May 10, 2009

rushstache 

A mustache grown specifically for the purpose of fraternity rush. Usually only done by older fraternity men during rush as a sign of experience rushing potential new members.

"Hey man, nice mustache"

"Rushstache kid."

rushstache by stonewall230 November 21, 2011