1 definition by Dizbiz

Top Definition
adjective; when something is so big and so amazing that words fail to describe it; a word to describe a euphoric experience; a more naughty version of "supercalifragilisticexpialidoucious"; traditionally used to describe a concert/performance.
That surprise No Doubt encore at the Gwen Stefani concert was orgastronomical!

That was a performance of orgastronomical porportions.
by Dizbiz September 07, 2008

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