Wiktionary
show-stopper
n. (alternative spelling of showstopper English)
WordNet
show-stopper
n. an act so striking or impressive that the show must be delayed until the audience quiets down [syn: showstopper, stopper]
something that is strikingly attractive or has great popular appeal; "she has a show-stopper of a smile"; "the brilliant orange flowers against the green foliage were a showstopper" [syn: showstopper]
Usage examples of "show-stopper".
Matson, examining the folio, very rapidly scanned this part, because the Reich had come up with some show-stoppers, and even the abominable U.