Refers to da substitute-for-grumbling-at-a delay vocal action
dat you engage in while unexpectedly/unavoidably having to wait for something
basic or mundane to occur, such as for equipment to warm up, someone to answer da phone, a web-page to
load on an internet-computer, etc. Great for when you're either babysitting children (for whom soft singing is often an effectively-calming/soothing
way of "placating them for a few" till a desired action/event can happen) or presently have one or more
adult-colleagues there who need certain actions and/or information-locating performed on their behalf, and so you are sympathetically showing them
dat you hate having to be held up, as well, just da same as they do.
Everyone loves da catchy "Alex Trebek waiting for da contestants to
think of an answer"
melody, so performing a round of "Jeopardy!" theme humming-on-hold can
work wonders to make everyone feel less grumpy/impatient at having to take a little longer than normal for something they want to happen.