Crumble Belly Share definition Flag The state of a queasy stomach, usually associated with too much and/or bad food. I would love to go out to the movies with you tonight, unfortunately the burrito I just ate has given me a case of the crumble belly. Crumble Belly by Sean Kerr August 28, 2007 0 0 Get merch Get the Crumble Belly mug. Buy Now — $32.95 See more merch