Top Definition
Commonly referred to by the layperson as "rain", dihydrogen monoxide, or "sky pee" as it known amongst meteorological spheres, is a substance that falls from the sky, nourishing planet Earth.

Found predominantly in lakes and the tears of dragons.
Man 1: How 'bout this weather?

Man 2: It's sky peein' cats and dogs.

Man 3: Mhmm.

Man 4: Sounds like a plan.
by madba January 15, 2011

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