Top definition
The smallest unit of measurement practically possible: A Red Cunt Hair.
by Anonymous December 15, 2002
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2
30 microns. Measured on a comparator by a physical scientist on his secretary's red cunt hair at the Defense Mapping Agency's Erskine Hall, Bethesda, MD sometime around 1980. No Shit. Your tax dollars at work.
"That RCH was yummy!" said Roy as he pulled it from his teeth.
by Joe Schmuckatella July 18, 2007
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3
A red cunt hair. Referring to the smallest unit of space, length, width, or height allowable.
I missed that bullseye by an R.C.H..
by Dave December 20, 2002
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4
Go gets my hammer sos wes can move dis an rch.
by mushim October 24, 2003
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5
A standard of measurement, the basis of the nano rch and the pico rch.
OK, Lem, we gotta move this mill just an RCH, so go easy with the hammer.
by Sneaky Snyde April 30, 2005
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