English

Definition of fat cat noun from the Oxford Advanced Learner's Dictionary

 

fat cat

 noun
noun
BrE
 
; NAmE
 
(informal, disapproving)
 
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a person who earns, or who has, a lot of money (especially when compared to people who do not earn so much) Why should those fat cats get rich at our expense?
See the Oxford Advanced American Dictionary entry: fat cat