1 definition by Hueyb

Top Definition
When you insert both thumbs into a rectum, gently widen it and take a big dirty sniff.
"Bro, I met this chick the other night and gave her the Dirtiest Mcquilken"

"I think he just gave me a Dirty Mcquilkin, but im not too sure"
by Hueyb February 09, 2019

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