Related:

• bug-for-bug compatible n. Same as bug-compatible, with the additional implication that much tedious effort went into ensuring that each (known) bug was replicated.
• bug-compatible: adj. Said of a design or revision that has been badly compromised by a requirement to be compatible with {fossil}s or {misfeature}s in other programs or (esp.
  ) previous releases of itself. "MS-DOS 2.0 used \ as a path separator to be bug-compatible with some cretin's choice of / as an option character in 1....
• Nothing is 100% certain, bug free or IBM compatible.
• ale pointer bug: n. Synonym for {aliasing bug} used esp.
  among microcomputer hackers. -- The AI Hackers Dictionary...
• hysterical reasons: (also `hysterical raisins') n. A variant on the stock phrase "for historical reaso
  indicating specifically that something must be done in some stupid way for backwards compatibility, and moreover that the feature it must be compatible with was the result of a bad design in the first place....
• wedgie: [Fairchild] n. A bug. Prob. related to {wedged}. -- The AI Hackers Dictionary
• enhancement: n. {Marketroid}-speak for a bug {fix}.
  This abuse of language is a popular and time-tested way to turn incompetence into increased revenue....
• I did it! I found the program's last bug bug bug bug bug bug bug bug bug
• ailed to the wall: [like a trophy] adj. Said of a bug finally eliminated after protracted, and even heroic, effort.
  -- The AI Hackers Dictionary...