Source : Free On-Line Dictionary of Computing

microLenat
     
        /mi:"-kroh-len"-*t/ The unit of {bogosity}, written uL; the
        consensus is that this is the largest unit practical for
        everyday use.  The microLenat, originally invented by David
        Jefferson, was promulgated as an attack against noted computer
        scientist {Doug Lenat} by a {tenured graduate student} at
        {CMU}.  Doug had failed the student on an important exam for
        giving only "AI is bogus" as his answer to the questions.  The
        slur is generally considered unmerited, but it has become a
        running gag nevertheless.  Some of Doug's friends argue that
        *of course* a microLenat is bogus, since it is only one
        millionth of a Lenat.  Others have suggested that the unit
        should be redesignated after the grad student, as the
        microReid.
     
        [{Jargon File}]