Contraction of "stupid idiot". More powerful than just calling someone "stupid", "idiot", or "stupid idiot", as the stupidoid on the receiving end of the label will be clueless as to what you just called him.
That stupidoid without a high school diploma thinks he can do my job which requires a college degree.

Or, that stupidoid just cut me off in traffic!
by PeaceinJC September 14, 2009
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