The phonic spelling of damn. In new zealand used to express a feeling of popular awe. Often accompanied by a backwards lean and withdrwal of the hands towards the face.
*pimped out car goes by*
Kevmo: Daium!
*An AI in game outsmarts me invariably*
Me: Daium!
*I finally get to see 4's insides*
Me: Unholy daium!
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