Top Definition
Milky onion is another name for a vagina. There are several layers of skin as that of an onion, and they are known to make many cry. A milky substance is secreted or found therein during times of sexual arousal and bacterial infection.
Woman: Wow, he didn't even want to eat me milky onion last night.
Other woman: Maybe the milk was too sour.
by TubaDave February 10, 2009
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