Face gun
When a dude looks like he just came out of a mental institution and is ready to shoot you because he thinks you owe him money from 2013.
My cousin’s uncle has Gun Face. He once threatened my cousin with a face gun just because he didn’t like the way he smelled.
My gym teacher has Gun Face. He once yelled at me for not doing a push-up properly and brandished a face gun.
That kid in my math class has Gun Face. He once told me he was going to roll me up in old carpet and throw me in a dumpster.