1 definition by mickey345
noun. A readily transparent attempt to conceal, especially of a flaw or fault. Word originates from the movie Troll 2, where a population of goblins attempting to conceal their presence live in a town called "Nilbog"; goblin spelled backward.
He can wear however many of those gurldles as he wants, but it's nothing but a nilbog; he's damn fat.
by mickey345 May 30, 2009