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

Gashtache

Vaginal secretion left on one's upper lip after performing the act of oral sex

Look at Toby's Gashtache! He must have been hunting beaver.

Gashtache by Barramundi13 June 30, 2016

Rustache 

The delicious outcome of the act of performing oral sex on a woman during her menstrual cycle.

Billy badass got a handlebar rustache from eating the discount prostitute's bloody vag.

Rustache by Robbid murphis May 17, 2011

rustache 

Thick black hair surrounding the rectal orifice.

Last night Mike asked Tommy to give him a rustache ride.

rustache by Casey February 24, 2005

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

Rastacles 

When a man dreads his pubes.

Dane: "I think I'm gonna go rastacles."
George: "Ew, you fucking tard, why would you want that?"

Rastacles by Chris Colletti January 3, 2009