/glits/ , Slang.
n.
1. ostentatious glitter or sophistication: a cocktail lounge noted for its glitz.
v.t.
2. to add a showy sophistication to (often fol. by up ): They glitzed up the lobby with a couple of fountains and a birdcage.
[ 1970-75; perh. b. GLITTER and RITZ ]