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The act of pouring a litre of milk into a woman's vagina while she does a handstand and then fisting her until it erupts out like a volcano.
Myles: "Hey man did you see that awesome video online with that chick doing a handstand?"

Giles: "Ya, her Milk Roaring vagina was super impressive. It got some pretty ridiculous height."
by thechampman January 23, 2011