obi-wan error: /oh'bee-won` er'*r/ [RPI, from `off-by-one' and
the Obi-Wan Kenobi character in "Star Wars"] n. A loop of
some sort in which the index is off by 1. Common when the index
should have started from 0 but instead started from 1. A kind of
off-by-one error. See also zeroth.