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)
"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."
12๐ 17๐
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
Dude, she gave me head... But I gave her a flying mustache
8๐ 10๐
When you're eating a girl out on her period, and when you stop your upper lip area has blood on it
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.
2๐ 1๐
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.
2๐ 1๐
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
2๐ 1๐
The act of ejacultating upon a womans face and dragging ones penis across the womans top lip.
"Dude, I totally gave that one hot chick from last nights party, a gummy mustache."
2๐ 1๐
When the pubic hair is grown to a long enough length that it is protruding from the underwear.
Wow, I was about to unbutton her pants until I noticed her Belt Mustache.
2๐ 1๐