drill instructor
Definition
A non-commissioned officer in the armed forces, police, or similar organizations tasked with training recruits in physical fitness, military bearing, and proper discipline.
A person renowned for an exceptionally demanding, loud, and authoritative teaching style that prioritizes absolute obedience and attention to detail.
Examples
My gym coach acts like a drill instructor, seemingly convinced that my desire to eat a bagel is the primary reason the national defense is crumbling.
Trying to teach my toddler to put on his own shoes has turned me into the drill instructor of my own living room.
The drill instructor’s primary goal is to ensure that by the time you graduate, your bed corners are sharp enough to slice through steel and your personality is sufficiently buried for the sake of the mission.