We found 7 dictionaries that define the word fat-cat:

General (4 matching dictionaries)

1. fat-cat: Merriam-Webster
2. fat-cat: Wordnik
3. fat-cat: Wiktionary
4. fat-cat: TheFreeDictionary.com

Business (1 matching dictionary)

5. fat-cat: Legal dictionary

Miscellaneous (1 matching dictionary)

6. fat-cat: Idioms

Slang (1 matching dictionary)

7. fat-cat: Green’s Dictionary of Slang

(Note: See fat_cat as well.)

Definitions from Wiktionary (Fat-cat) ▸ noun:  Alternative form of fat cat [(slang, originally) A rich person who contributes to a political campaign.] Similar: fatcat, wild-cat, cat fight, fancypants, cat-man, scaredy cat, KatyCat, rat fink, high-flyer, high-roller, more... ▸ Words similar to fat-cat ▸ Usage examples for fat-cat ▸ Idioms related to fat-cat ▸ Wikipedia articles (New!) ▸ Popular adjectives describing fat-cat ▸ Words that often appear near fat-cat ▸ Rhymes of fat-cat ▸ Invented words related to fat-cat