fatso [noun] [C] [informal] [disapproving or humorous]A fatty is a person who is (too) fat.Come on fatty, can't you run any faster? [as form of address]Good news for fatties - this new no-exercise, no-diet regime will change your life permanently.
FATTY
Meaning of FATTY in English
Cambridge English vocab. Кембриджский английский словарь. 2012