1a song or other performance receiving prolonged applause from the audience:he wants every scene to be a showstopper
something that is striking or has great popular appeal:the brilliant orange flowers against the bronze-green foliage were a showstopper
2 Computing a bug that needs to be fixed before a piece of software can be used or released:there were several last minute showstoppers that derailed the Beta 2 rollout
an obstacle to further progress:the subsidy limits proved to be a showstopper for other senior Democrats who refused to pass the bill with such restrictions
