This from bartleby.com and the American Heritage Dictionary.
1. Sickness caused by excessive eating or drinking. 2. Excessive indulgence; intemperance.
From crapulent, sick from gluttony, from Late Latin crpulentus, very drunk, from Latin crpula, intoxication, from Greek kraipal.
crapu·lent —ADJECTIVEcrapu·lous —ADJECTIVE