Rain.

This is a term you use to confuse and disgust small children so that they keep their hoods or umbrellas up. Cemented by someone, usually their father, saying "It's pissing down!"
"Keep your umbrella over your head! I've only just done your hair! You don't want it getting all rained on, babe, d'ya know why? Cos rain is Sky Wee. That's right. Wee. From the sky. So keep your umbrella where it's meant to be."
by MagickDio July 17, 2011
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