tinsel

1. A shining material used for ornamental purposes; especially, a very thin, gauzelike cloth with much gold or silver woven into it; also, very thin metal overlaid with a thin coating of gold or silver, brass foil, or the like.
2. Very thin strips of a glittering, metallic material used as a decoration, and traditionally draped at Christmas time over streamers, paper chains and the branches of Christmas trees.
3. Anything shining and gaudy; something superficially shining and showy, or having a false luster, and more pretty than valuable.

1. To adorn with tinsel; to deck out with cheap but showy ornaments; to make gaudy.
2. To give a false sparkle to (something).

adjective

Glittering, later especially superficially so; gaudy, showy.