Definition of fatten

• v. t. - To make fat; to feed for slaughter; to make fleshy or plump with fat; to fill full; to fat.
• v. t. - To make fertile and fruitful; to enrich; as, to fatten land; to fatten fields with blood.
• v. i. - To grow fat or corpulent; to grow plump, thick, or fleshy; to be pampered.