Facial Filter - A facial filter is when you use your mustache like a straine

A facial filter is when you use your mustache like a strainer to avoid swallowing the yucky stuff in your drink.

I poured my hot chocolate on my mustache to keep the lumpy stuff out of my mouth.

My smoothie had so much pulp I had to filter it through my mustache.

I drank my soup like a mad scientist, using my mustache as a sieve.