show-stopper(redirected from a show stopper)
The most exceptional or memorable performance or item among others; a stand-out. Yeah, the opening act was a real show-stopper—the headlining band was disappointing in comparison! All the pieces in the designer's collection were excellent, but the wedding dress was a real show-stopper.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.