N.U.B. or NUB is an acronym for a long used expression in the U.S. Navy
that means Non-Useful Body. Usually a term given to those recently out of school and have yet to learn the ways of being a true sailor
in the U.S. Navy
usually use this term towards those who have not qualified for submarines, an arduous task which ends in the sailor being presented his "Dolphins
" and being accepted as no longer being a NUB.