Adjective

1. Cheap and showy, or meretricious.
   • 1999: "My, my, my, my, my," said a voice from behind them, and the Baudelaire orphans turned to find Stephano standing there,...a look of brummagem surprise on his face. "Brummagem" is such a rare word for "fake" that even Klaus didn't know what it meant, but the children did not have to be told that Stephano was pretending to be surprised. -- The Reptile Room, Lemony Snicket.
   • 1999: He stomped over to where Mr. Poe was standing, but halfway there the children saw his face change from one of pure rage to one of brummagem confusion and sadness. -- ibid.