Once your done giving head to a guy, you pretend that you swallowed and make him think your just going to give him a kiss on the cheek goodbye but when you get closer, you spit it back on his upper lip.
(this is mostly used for revenge when a guy doesn't give you a hint he is going to cum)
(this is mostly used for revenge when a guy doesn't give you a hint he is going to cum)
"Ahh, that guy last night cummed in my mouth without telling me when it was going to happen, so I gave him a milk mustache."
by Jwizzzle16 December 28, 2009

Trim your pubic hair and keep it In your hand. While having sex, you cum on the victims upper lip and throw the pubs on to make the flying mustache
by S.Push March 7, 2009

A man with a robust mustache who frequently mounts women upon his face saddle, therefore giving a mustache ride.
Sally gave a great big "Yee-Haw!" as she met her first mustache cowboy, giving George's magnificent mustache a ride.
by MegStin September 1, 2015

Dude your breath smells terrible. What's more, did you get punched in the nose? Your lip is bleeding.
Nope, my girl is ragging and I ate her out so it's my menstrual mustache.
Nope, my girl is ragging and I ate her out so it's my menstrual mustache.
by jrudeboy February 21, 2014

When you cum on a girls upper lip while she is sleeping and then stick white cat/dog hair in it so she wakes up with a mustache and solves the "theory of relativity"
I thought she was just Italian, then I realized someone gave her an einstiens mustache after the frat party last night
by Dr Jager Dave June 10, 2010

31 days of shaving everything off of your face except a disgusting mustache. Similar to "No-Shave November" and "Decembeard"
Dan's looking a bit like a pedophile lately, isn't he?
Yeah. I guess he took Mustache Manuary a little far this year.
Yeah. I guess he took Mustache Manuary a little far this year.
by Ckleeb December 12, 2009

by Dillon Stone May 14, 2014
