jazz up

English

jazz up (third-person singular simple present jazzes up, present participle jazzing up, simple past and past participle jazzed up) (informal, transitive)

To make gaudy and bright.
Near-synonyms: liven up, enliven, brighten up, brighten; gaudify

I jazzed up my room with some new posters.
- 1987 [1984], James Ellroy, chapter 22, in Because the Night, New York: Avon, →ISBN, page 189:
  Johnny imagines all manner of chrome gadgetry that he could kipe and give to his father to jazz up his ’fifty-six Ford Vicky ragtop.
To make more interesting by additions.
Near-synonyms: liven up, enliven; spice up; customize

I jazzed up a supermarket pizza with olives and fried onions.
To give a rhythm or melody reminiscent of jazz.
Synonym: jazzify

They played a jazzed-up version of the original song.

to make gaudy and bright