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Term used to describe a popular video on the internet where a guy sticks a dildo up his penis.
"My neighbor was performing 'Kids in Sandbox' on himself!
by Dan-Man2 August 20, 2005
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An act at which a women penetrates a dildo inside a men's penis whole.
My penis hurts cause i got kids in sand box.
by breno soares January 07, 2008
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