WordNet (r) 3.0 (2006):

hobbit
    n 1: an imaginary being similar to a person but smaller and with
         hairy feet; invented by J.R.R. Tolkien

The Free On-line Dictionary of Computing (30 December 2018):

Hobbit

   A Scheme to C compiler by Tanel Tammet
   .  Hobbit attempts to retain most of
   the original Scheme program structure, making the output C
   program readable and modifiable.  Hobbit is written in Scheme
   and is able to self-compile.  Hobbit release 1 works together
   with the scm release scm4b3.  Future releases of scm and
   hobbit will be coordinated.

   (ftp://altdorf.ai.mit.edu/archive/scm/hobbit2.tar.Z).

   (1993-04-25)

   2. The non-ITS name of  (*Hobbit*), master of
   lasers.


The Free On-line Dictionary of Computing (30 December 2018):

hobbit

   High order bit.  The most significant bit (of a byte).  Also
   known as the meta bit or high bit.

   [Jargon File]