Top Definition
Acronym for: Sand In Your Vagina...

First coined on South Park by Cartman.
"Easy tiger, don't bite my head off - have you got siyv?"

"Man... she's in a bad mood today - she must have Sand In Her Vagina!"
#arsey #on #period #grumpy #moody #argumentative
by Evil Dr Fish January 12, 2010
6 Words related to SIYV
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