Top Definition
A McDonalds Double Cheeseburger, with a McChicken stuffed inside, and the combined effect of consuming one is equal to that of a heart attack and an orgasm, all at the same time.
Damn holmes I just j'ed all over my p's after downing that McYumYum!
by Big McLarge-Huge November 18, 2009
7 Words related to McYumYum

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