The fatty, transparent serous membrane that covers the intestines of cows, sheep, and pigs, often used as a casing for sausages and other meat dishes.

(cycling, winter sports) A bicycle equipped with larger than normal tyres and a wider frame to accommodate them, which provides better traction on off-road surfaces such as sand or snow.

plural of fat bike

(colloquial) A day on which one feels overly conscious of being overweight.

plural of fat sandwich

To become gradually fat; to put on weight.

(US, New Jersey) A submarine sandwich containing various fast food items such as burgers, fries, and gyro meat.

(idiomatic, derogatory) Complete, utter, total. / (idiomatic, colloquial) Huge, colossal.

(medicine) A cell of the body whose primary function is to store fat.

(derogatory, archaic) gross and lubberly.