Definition

A nonsensical question asking 'What do you do?' or 'What now?' when you're stuck or unsure of the next move. It's the verbal equivalent of shrugging while holding a hammer.

Example Usage

I can't figure out how to assemble this furniture—yadadado?

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=yadadado&defid=1954315)