sexstache 

Developing one's 5'o clock shadow to a whole new level of perfection and sex appeal. Use with caution.

eyoore: Hey, like my 5 o clock shaddow?
cathy: omg eyoore, that's no 5 o clock shadow, that's a sexstache. it makes you look 10x sexier.
eyoore: heh.

sexstache by bobdylan95 November 6, 2011

Serjstache 

Fashioned out from the lead vocalist of S.O.A.D. or 'System Of A Down'. Best band ever, imo.

Used to describe someone with facial hair that exceeds all known descriptions. Usually put on someone with an UNGODLY amount of facial hair, either that or he has some crazy, wicked, yet awesome style to put it in.

Serj Tankian, be the owner of the serjstache, naturally.

Duuude. I saw Malik in Tajihjkistan. He's got a frikkin' Serjstache.
....
He's not gunna get to the airport, is he.
Naw~ I dun' think he is. D:

Serjstache by JackyNgauff July 14, 2010

shestache 

A female mustache. Usually appears on a girl's upper lip when she missing her waxing appointment.

"Mary, I don't care how big your rack is, you're never getting laid with that shestache."

shestache by J.O. May 2, 2006

substache 

a temporary fake mustache one uses while waiting for his/hers to grow in thicker

"I started Movember fresh so I had to use a Mr. Potato head substache till I caught up"

substache by Mr Roboto234 November 2, 2011

sextachment 

Forming an emotional attachment when just intercourse is involved

Erik and I hooked up a couple of times and he formed a sextachment? Thought we were just having fun!

sextachment by Krislynn5 February 15, 2014

sexache 

The pleasant pain that follows an episode of hard sex.

Jim and Kathy did it so hard that they broke the bed. The next morning they both had a sexache.

sexache by deSade December 15, 2012

Sustache 

A swath of facial hair grown to ward off enemies and, consequently, any potential mates;

When a mustache is unavoidably suspicious & disconcerting.

"Is it just me or was that UPS guy giving off some kill-you-in-blue-lipstick vibes?"
"Don't overthink it -- he's just sporting a major sustache."

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"I almost had her number," Stuart thought to himself.

He didn't realize his sustache was ensuring his worst fear of dying alone.

Sustache by Menorah January 8, 2015