All 3 Uses

gaudy
in
Seventeenth Summer
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The hushed night seemed so real, so lovely that I felt almost ashamed of the gaudy efforts of the faded rockets.†
Chpt July *

gaudy = tastelessly showy
It was a gaudy thing, like a woman with too much rouge on, and the glow it made in the corner of the room was almost warm and tangible enough to touch and the bright, twisting colors added a strange color to the music that came out of the box.†
Chpt July
It was still early so we decided to leave the Ferris wheel till later and walk by the sideshow tents, looking at the gaudy-colored posters and watching the barkers and the come-on girls first.†
Chpt Augu

Definitions:

(1) (gaudy)
tastelessly showy
(2) (meaning too rare to warrant focus)
Much more rarely, in classic literature gaudy can refer to something that is extravagantly showy without the implication that it is tasteless. Even more rarely, it can refer to a celebratory feast held by a college.