McFattie 

Someone who eats too much McDonald's

That guy has been eating McDonald's all this week. He's starting to become a McFattie.

McFattie by RickrollingIsOverrated July 5, 2009

Fatty McFatterson

A name givin to those who are so fat, they only exist in legends.

Joe Banana was trapped under a Fatty McFatterson's chin for 3 months.

Fatty McFatterson by Pubic Hair October 11, 2003

Fatsy McFattington 

A codename for a female whom is exceptionally fat, or partaking in activities that lead to fatness, such as over-eating.

"Ugh I ate so much! I'm such a Fatsy McFattington!"

Fatsy McFattington by YoLoRae April 7, 2009

McHattie 

(noun): the celebrity name of Janet McTeer and Harriet Walter.

"So, did you see McHattie at the Tony Awards?"

McHattie by dianahawthorne June 9, 2009

Shorty McFatterson 

1. An incredibly short person, who also happens to be rather round. Aka a fat midget.

2. Primarily located in the Northern Virginia region.

3. Also referred to as "Beast."

Jeremy: Dude, did you see that thing?

Michael: Dawgggg, I seen what I seen and what I seen wadn't pretty.

Jeremy: That was a Shorty McFatterson.

Michael: *Gasp* DA Shorty McFatFat?

Jeremy: That's the one.

Shorty McFatterson by ThatNigelManandCompany March 10, 2011

Fatty McFatterstein 

A person, dog, or cat, who is overweight due to overeating or lack of exercise. Generally, the extra weight will be centered around the middle (or gut), thus creating a rotund appearance.

For humans: I can't find a dress shirt that doesn't look like a tent. It seems like all these dress shirts are really made for Fatty McFattersteins.

For dogs/cats: My cat lives for breakfast and dinner and she has an extra pouch hanging down. What a little Fatty McFatterstein.

Fatty McFatterstein by Sara Alize Cross January 7, 2009

Fatty McFatterson

A Cannabis Cigarette rolled beyond the conventional diameter.

Cheech and Chong's standard practice was to roll a Fatty McFatterson.

Fatty McFatterson by Aaron Brittain November 1, 2006