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Slang term, mostly used in the small town of Colon Michigan, for a dildo. Can also be yelled out if you just did something very redneck-like.
I heard his mom uses a you who dilly!

I went into my sisters room while she was using her you who dilly! I almost threw up!

I just fucked my cousin in my truck! You who dilly!!!
by Cunty McShitballs July 15, 2012
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