Bloat meaning : Distention of the abdomen from death. Pathological overdistention of rumen with gas in a ruminant. Wasteful use of space or other resources. A worthless, dissipated fellow. To cause to become distended. (veterinary medicine) to get an overdistended rumen, talking of a ruminant. To fill soft substance with gas, water, etc.; to cause to swell. To become distended; to swell up. To fill with vanity or conceit. To preserve by slightly salting and lightly smoking. Bloated.