mill mouth
the course language commonly used by mill, factory, warehouse personnel and chemists
Foreman: Chris you fucking cunt scab! You loaded the wrong drums on the truck!
Chris: Fuck you you bald headed prick, they're labeled wrong.
Secretary: Oh dear, the fucking mill mouth around here is getting out of control.
Chris: Fuck you you bald headed prick, they're labeled wrong.
Secretary: Oh dear, the fucking mill mouth around here is getting out of control.