mcdouble penetration 

A spit-roast performed by two obese men dressed as Ronald McDonald while eating McDonald's.

john and Pete performed a mcdouble penetration on Susan

mcdouble penetration by yellowsauruas October 2, 2015

McDoublePenetration 

A McGangbang -Mcchicken inside a Mcdouble- replacing the center bun of a Big Mac.

Person 1: "Why do they call it a McDoublePenetration?"
Person 2: "Cause its like having a cock shoved up both your holes, only the cock is the sandwich and the holes are your arteries."

McDoublePenetration by Hairyyy0 September 12, 2010