easter bug
Much like a software easter egg, an easter bug is designed to add unexpected functionality, but the big difference is it is disguised as a coding bug.
Miko: We found a potential bug during your code review that causes Jimmy Rustles to win the sweepstakes every year on their birthday. What a weird coincidence.
Bernie: Yeah, must be an off-by-one error, so weird.
Chi Chi: ... did you make an easter bug?
Bernie: Keep your mouth shut, Chi Chi.
Bernie: Yeah, must be an off-by-one error, so weird.
Chi Chi: ... did you make an easter bug?
Bernie: Keep your mouth shut, Chi Chi.