Definition of Ascites

Ascites: Abnormal buildup of fluid in the abdomen. Ascites can occur as a result of a number of conditions, including severe liver disease and the presence of malignant cells within the abdomen.

http://www.medterms.com/script/main/art.asp?articlekey=2362
Or..... He's just fat!
Either Or.... He needs to see his Doctor

"Will Ride or Fly for food"