The act of spreading ejaculate on someone's upper lip.
That girl was trash, she just wanted some dick, so I gave her a pearl mustache
The leftover Cummings from last nights dinner
1. A women's cum left on a mans mustache after a night of dinner.
You have a little mustache milk leftover.
National Mustache day is April 20th where all mustaches hold a competition for who can grow the biggest mustache.
Another boring day. "What do you mean Max its national mustache day get up and get ready!