Variation on "asswipe" . To the best of my knowledge, coined in the mid-to-late 1970's by the late Al Ferrante in Rotterdam, NY: this is an homage to John Wayne's final film, "The Shootist", which was out in theatres at the time.

As Mr. Wayne's title character was so good with a gun, that he was considered a specialist, or like unto a scientist (hence "shootist"), a "wipist" is one whose skills would place them at the forefront of the asshole-cleaning industry!
You wipist! Aww, man, you are such a WIPIST!!!
by J Pasko May 18, 2008
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