jazz hands

jazz hands pl (plural only)

1. A dance move in which the performer's hands are extended with palms toward the audience and fingers splayed.
2. A gesture in which the hands, which are extended with palms facing forwards and fingers splayed, are rotated quickly.
   • 2013, Iris Smyles, Iris Has Free Time, Berkeley, CA: Counterpoint, →ISBN, page 9:

     “You shouldn't,” I said. Perhaps he might hire me for my refreshing honesty? I laughed faintly, then added, “Just kidding,” and gave him jazz hands.

• spirit fingers