[Stanford] The archetypal man you don't want to see about a
problem, esp. an incompetent professional; a shyster. "Do you
know a good eye doctor?" "Sure, try Mbogo Eye Care and
Professional Dry Cleaning." The name comes from synergy between
bogus and the original Dr. Mbogo, a witch doctor who was Gomez
Addams' physician on the old "Addams Family" TV show.
Interestingly enough, it turns out that under the rules for Swahili
noun classes, `m-' is the characteristic prefix of "nouns
referring to human beings". As such, "mbogo" is quite plausible
as a Swahili coinage for a person having the nature of a
bogon. Compare Bloggs Family and
Fred Foobar and fred.