The act of rubbing ranch dressing on the mustache of a past out, unsuspecting person causing it to dry and crust on their upper lip.
I passed out at my buddies and when I woke up I saw that I got Hidden Vallied.
by ssdkay October 4, 2010
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When you perform a sexual act with Ranch dipping sauce (Hidden Valley or ranch with peppercorns) as lube.
"Man I got so wasted last night I hidden vallied"

I took this girl home with me last night dude, Man she Hidden vallied me.
by Blitzmp January 22, 2018
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