Related:

• Bohr bug: /bohr buhg/ [from quantum physics] n. A repeatable {bug}
  one that manifests reliably under a possibly unknown but well-defined set of conditions....
• heisenbug /hi:'zen-buhg/ n. [from Heisenberg's Uncertainty Principle in quantum physics] A bug that disappears or alters its behavior when one attempts to probe or isolate it.
  (This usage is not even particularly fanciful...
• heisenbug: /hi:'zen-buhg/ [from Heisenberg's Uncertainty Principle in quantum physics] n.
  A bug that disappears or alters its behavior when one attempts to probe or isolate it....
• mandelbug: /man'del-buhg/ [from the Mandelbrot set] n.
  A bug whose underlying causes are so complex and obscure as to make its behavior appear chaotic or even non-deterministic....
• mandelbug /man'del-buhg/ n. [from the Mandelbrot set] A bug whose underlying causes are so complex and obscure as to make its behavior appear chaotic or even non-deterministic.
  This term implies that the speaker thinks it is a Bohr bug, rather than a heisenbug....
• chroedinbug /shroh'din-buhg/ n. [MIT: from the Schroedinger's Cat thought-experiment in quantum physics] A design or implementation bug in a program that doesn't manifest until someone reading source or using the program in an unusual way notices that it never should have worked
  at which point the program promptly stops working for everybody until fixed....
• chroedinbug: /shroh'din-buhg/ [MIT: from the Schroedinger's Cat thought-experiment in quantum physics] n.
  A design or implementation bug in a program that doesn't manifest until someone reading source or using the program in an unusual way notices that it never should have worked, at which point the program promptly stops working for everybody until fixed....
• phase of the moon n. Used humorously as a random parameter on which something is said to depend.
  Sometimes implies unreliability of whatever is dependent, or that reliability seems to be dependent on conditions nobody has been able to determine....
• filter n. [very common; orig. Unix, now also in MS-DOS] A program that processes an input data stream into an output data stream in some well-defined way
  and does no I/O to anywhere else except possibly on error conditio...