Adjective
Content; having one's wants and needs met; often with a connotation of complacent advantage or privilege (as for example with a sinecure or with power of socioeconomic establishment).
Synonym: fat, dumb and happy
Used other than figuratively or idiomatically: see fat, happy.
Source: en.wiktionary.orgYou and your ancestors treated the world like a fucking great toilet bowl. You shat in it and boasted about the mess you'd made. And now it's full and overflowing, and you're fat and happy and black kids are going crazy to keep you rich. Goodbye! John Brunner
All around the circle, feeding on the green, green grass were fat and happy horses... Black Elk