Looking For The Word…

…to describe the action of puckering your lips, blowing, emitting vowel-like sounds in your throat, all while simultaneously flicking your finger rapidly up & down across the lips to make “bur-burbeling” sounds.

You all know what I’m talking about. It’s a universal thing, we learn it as we’re pre-verbal infants, from the Australian outback to the strollers of Central Park. If you have no pride or self-respect and are willing to record yourself doing it and then putting that video clip out on the internet for all the world to see, it’s this:

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For the record, Siri was no help, although she was hilarious. In particular, the first answer returned was profound!

So, that. THAT sound or noise or action or thing.

What’s that called?