A misfeature of a system, especially a programming language or environment, that tends to breed bugs or mistakes because it both enticingly easy to invoke and completely unexpected and/or unreasonable in its outcome.For example, a classic gotcha in C is the fact thatif (a=b) code is syntactically valid and sometimes even correct.It puts the value of "b" into "a" and then executes "code" if "a" is non-zero.What the programmer probably meant wasif (a==b) code which executes "code" if "a" and "b" are equal.[Jargon File](1995-04-17)