A recent survey of the Major Internet Search Engines reveals that of around 4000 sites that use "bitchen" only 11% are spelling it properly.
This statistic is, unfortunately, representative of the sad state of spelling bitchen in America.
His SSS program touched thousands of kids helping them not only with bitchen, but also with gnarly,tubular, andrad. ("You'd be surprised how many get that one wrong," he adds.)
they're spelling it wrong
bitchen--cool, rad, keen, neato, gnarly.
An adjective with the suffix "-en" that means "having been made to have the qualities of," like "golden", "frozen", "wolven", and "cloven". A negative to positive slang conversion like "bad" or "gnarly." Originated by California surfers (who brought us "tubular" and "gnarly" as wave descriptions).
Notable Usage: Terry Fields (Charles Martin Smith) in George Lucas' "American Graffiti."
Use of this word is not swearing or profane.
Its resemblance to the expletive noted above is etymological yet unfortunate.
From Partridge's Concise Dictionary of Slang and Uncoventional English
bitching, bitchin',[bitchen] adj [A violent perjorative.] Aus. mid C.19-20 Ronan 1956 "Wouldn't that be a bitchin' joke?" Perhaps originally euphemistic.
Clearly in use by the time of "Gidget" as well as "American Graffiti.".
bitchin'--contraction of the present perfect tense of "to bitch"
Java Developer, World Traveler, Last of the Big-Time Spenders