Definition of big fat
- That's a big fat lie!
- Come here and give me a big fat kiss.
- He came home with a big fat F on his report card.
: of great strength
: of great force
: large or great in dimensions, bulk, or extent
: in a loud or declamatory manner
: to a large amount or extent
: on a large scale
: an individual or organization of outstanding importance or power
: a big player : a center or forward whose large size and strength are used to control play near the basket
: notable for having an unusual amount of fat:
: having excessive body fat
: to make fat : fatten
: animal tissue consisting chiefly of cells distended with greasy or oily matter
: oily or greasy matter making up the bulk of adipose tissue and often abundant in seeds
: any of various compounds of carbon, hydrogen, and oxygen that are glycerides of fatty acids, are the chief constituents of plant and animal fat, are a major class of energy-rich food, and are soluble in organic solvents but not in water
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