Showstopper

noun

Definitions

Noun
  1. 1
    A performance or segment of a theatrical production that induces a positive audience reaction strong enough to pause the production.
  2. 2
    something that is strikingly attractive or has great popular appeal wordnet
  3. 3
    Any impediment that prevents all further progress.
  4. 4
    an act so striking or impressive that the show must be delayed until the audience quiets down wordnet
  5. 5
    Any impediment that prevents all further progress.; A software bug that must be fixed before any further development is possible.

Etymology

From show + stopper.

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