1. noun /fæt/
We need to trim the fat in this company
b) A specialized animal tissue with a high oil content, used for long-term storage of energy.
In 1431 New College purchases brewing vessels, under the names of a mash fat, for 6s. 10d., a wort fat for 2s., a Gilleding tub for 2s. 6d., and two tunning barrels at 8d. each, a leaden boiler for 24s., another for 12s., and a great copper beer pot for 13s. 4d.
2. adjective /fæt/
a) Carrying a larger than normal amount of fat on ones body.
The fat man had trouble getting through the door.
b) Thick.
The fat wallets of the men from the city brought joy to the peddlers.
Syn: chubby, chunky, corpulent, lardy, obese, overweight, plump, porky, rotund, tubby, well-fed, thick, bountiful, prosperous
3. verb /fæt/
To make fat; to fatten.
Wikipedia foundation.