Gon, programming> /man' del-buhg/ (From the {Mandelbrot set}) A {bug} whose underlying causes are so complex and obscure as to make its behaviour appear chaotic or even nondeterministic. This term implies that the speaker thinks it is a Bohr bug, rather than a heisenbug. See also schroedinbug. [JarGon File] (1995-02-08)