When your hibachi chef fluffs his junk before lighting the onion ring volcano, his way of enhancing the experience for everyone involved.
Though it’s not the cleanest but I know I have a good chef when I see his Japanese jazz hands fire off before the show.
The various motions people use trying to get the hand air dryer to start in a public restroom.
Man, that guy made restroom jazz hands for over a minute before he figured out the air dryer didn't work.
When a plaintiff doesn't have a good case, acts panicky, and freaks out for lack of any other option by filing a frivolous lawsuit, hoping to whoop up public sympathy.
"If they'd had a case, they would've filed for an injunction. Instead, they went all legal jazz hands with a frivolous lawsuit they'll never win."
The act of performing a google search. The company Google (now known as Alphabet) was originally based in Mountain View, California (USA). Jazz Hands refers to a dance move with fingers outstretched, rapidly moving, and fingers splayed somewhat similar to typing.
Take the part number and do the ol' mountain view jazz hands routine to find the spec sheet.