Top Definition

1. Anything so unbelievably amazing that it takes 8 syllables to express your satisfaction.

2. If you piss yourself with laughter or happiness, this word describes your feeling.
Watching Billy get kicked in the balls by his ex was fantasmorgasmanomical!

Spending the night with Jessica Biel was fantasmorgasmanomical!
by Vilma458 February 04, 2010

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