Top Definition
Undercover fat person
K.G.B was like C.I.A of Soviet Union
Person of overweight or "fatness" trying to pass off or deceive one of true wight as something else.
eg. "Hey, you've been gaining some weight"
"No I'm not, I'm just big boned"
"You're a K.G.B. Fattie , Britney Spears"
by Dame's D. and Mikael James February 02, 2009
10 Words related to K.G.B. Fattie

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