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The smallest unit of measure used for all applications during Marine Corps Recruit Training.
no more than a cunt hair of space allowed
Cunt Hair by ziggytpp November 5, 2011
Urban slang meaning the 2nd smallest unit of measurement.
We just need to shift this dresser a cunt hair more to allow the door to open and close easily.
Cunt Hair by urbandoug February 18, 2018
A "cunt hair" is the second smallest unit of measurement, used for nearly infinitesimal distances.
Example : Scotland were within a cunt hair of freedom, but instead chose to continue to suck Britain off within a cunt hair of its life
cunt hair by therealmidgeconnor November 15, 2014
A person who is completely useless.
Person 1: "There she is, sleeping on the job again..."
Person 2: "Dude, what a fucking cunt hair."
Cunt Hair by NChick1987 February 2, 2006
Unit of measurement, approximately 3 millimetres, the average thickness of an adult female pubic hair, unless that female is my ex girlfriend Susan, who had very thick pubes
That picture on the wall is crooked, move it a cunt hair to the left
Cunt hair by brytor March 16, 2021

cunt-hair 

waitress: do you want ketchup on your eggs?
patron: just a cunt-hair

Girl 1: your gas light just came on, we should stop somewhere.

girl2: nah, we can get there on just a cunt-hair
cunt-hair by temple tattoo April 8, 2010