RCH

[Unka Bart]

Douglas Frank hit the nail on the head.

RCH is a technical term, that, like "Schosh," is a product of the American
Military idiom.

"Scosch" is the Military version of the Japanese technical term, "Scoschi,"
meaning "Thi-Thi."

"Thi-Thi" is a Vietnamese technical term, meaning "Nit-Noi;" itself a Thai
technical term, meaning "Little bit."

"RCH" (Romeo Charlie Hotel) is a precise measurement, widely used in
military applications, to describe something the width (or diameter) of a
(specialized) human hair, found only on red-headed persons of the Female
persuasion.

And now, just to keep Brett from blasting me for no list content, may I
politely conclude by saying "Quattro."

(gesundheit!)

Yer Kindly Ol' Unka Bart