A Black Gun
A Black Gun is a person who doesn’t think, doesn’t feel, just does what they’re told, like a zombie who got a promotion.
My boss is a Black Gun, he shows up, does his job, and that’s it.
My sister’s a Black Gun, she’s alive, but she might as well be dead.
My uncle’s a Black Gun, he works 8 hours a day and still doesn’t know his own name.