much the same as its realtive term "ïpso facto" which means 'by the very fact', ipso fatso stands for 'by the very fat'. (2) Can be use as a term of endearment. In my case, my overweight kitty and best buddy, Magoo, is referred to as "ipso fatso" when he insists, at times, to be carried to his food dish. (3) In the feline world, a Garield! >^..^<
Magoo is called Ipso Fatso when he just can't motivate himsel to his food dish to eat AGAIN?!
by azkittenkat >^..^< June 17, 2011
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Recipe:

-2 parts vodka
-Shit ton of Doublestuf oreos
-Splash of milk

Combine all of the ingredients in a blender and enjoy.
Damn, I'm tryin' to go ham on a couple of Russian Fatsos tonight before the club.
by fatso_joe December 14, 2010
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the special kind of people woho are 1.) fat, 2.) nice but 3.) dumb, and so on, forget allmost everything you tell 'em.

"Oh man, you're a fatso forgetso!"
none needed (think I've got it - fatso forgetso - from some movie, but I can't remember which one)
by daliban from arschghanistan February 14, 2009
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When a person of very large frame drinks Diet Coke with there meals.
WFAN commentator Mike Francesia is a diet coke fatso. We all know one and laugh every time.
by ObanaitisMan June 5, 2009
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A big and fat person, especially one with a big butt.
Look at those before and after photos. She was a real fatso fatty butt before she did that diet plan. Wow.
by PMax February 10, 2008
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