Define Chinese Buffet Pants Meaning

Chinese Buffet Pants
loose fitting pants, with elasticized waist band. Made to accommodate for the abdominal expansion that occurs after 2nd and subsequent visits to the all-you-can-eat buffet bar in Chinese (and other) buffet restaurants.

Chinese restaurant waiter: Hey, fat boy, your pants just ripped.... you go home now!
Fat Boy: Drat! Time for some new Chinese buffet pants.... just as soon as I finish this last plateful of remon chicken.
By Melisande