Mcyummy 

Used to describe an incredibly good-looking guy. So good-looking that you get the desire to taste him in some way.

relates to the term Manwich.

Girl1: damn that man is so hot.

Girl2: yes, he looks very delicious.

Girl1: he's my Mcyummy.

Mcyummy by JoeMasturbaby July 20, 2009

McYumYum 

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!

McYumYum by Big McLarge-Huge November 18, 2009

Scummy McBummy 

A hobo, male or female, whom is pan handling in or around McDonald's.

Get the hell out of my face, Scummy McBummy! I already told you, I don't have any change.

Scummy McBummy by CatPoopFive December 14, 2010

Mctummy ache 

stomach pain after eating mcdonalds

"everytime i eat mcdonalds i get the Mctummy ache"

Mctummy ache by .tanya. August 10, 2007

McDummy

A Bay Area, California alcoholic beverage that is 2 parts Irish Whiskey and 1 part "Hyphy Juice." It gets its nomenclature from being both Irish and "Bay," in nature. This drink is spawned from a combination of Warrior Game celebration, doubt of self-worth and a need to ease the pain of a blue-collar/working-class lifestyle. It tastes like "grapple," and is so delicious you'll slap yourself.

"The party was all chill 'til the McDummys started flowing..."
"What a terrible day...I need a McDummy, STAT!"
"Aye cuz, go get a can of Hyphy Juice at the L-I-Q...I already got the Jameson."

McDummy by Colin Ehara, Kori Chen, Greg Mitchell April 1, 2008