fattenv. t.[See Fat, v. t.]1. To make fat; to feed for slaughter; to make fleshy or plump with fat; to fill full; to fat.()2. To make fertile and fruitful; to enrich; as, to fatten land; to fatten fields with blood.(Dryden.)v. i. To grow fat or corpulent; to grow plump, thick, or fleshy; to be pampered.()And villains fatten with the brave man's labor. (Otway.)