moustache salt 

The salt like residue left behind on your moustache as a result of performing cunnilingus on a female with a smelly, salty and probably very acidic genital area.

Hey bro did you hear Zak got terrible moustache salt after eating out his new girlfriend?!

moustache salt by FunkInUrBunt July 14, 2018

salt and pepper moustache 

White, blonde adolescent boy with pre-pubescent moustache consisting of blonde and black hair. The individual believes this two-toned tasche is cool, but it's not.

"Look at Mike's salt and pepper moustache"

salt and pepper moustache by creeps and freaks July 29, 2012