facemask
A smelly face cover you wear when you're trying to hide how ugly you are or when you're about to punch someone in the face and make them cry.
My cousin wore a facemask to hide his face after he ate 10 tacos and threw up in the hallway.
I used a facemask to cover my face after I got beat up by my mom for failing math again.
My dog wore a facemask because he was trying to steal my pizza and I had to punch him in the face to stop him.