1. A recent commercial declared by Stephen Colbert
to be a beacon of hope that will lead us to regaining our cultural unity as a nation.
2. A synonym for unbelivable used for humorous effect.
1. "If America is to prevail in World War III, we'll need some sort of common experience to bond us as a people... I believe the love for the word "Crumbelievable" is just the thing we need. Soon enough we'll be seeing crumbelievable t-shirts selling like hot cakes.
2. "Gas prices these days are outrageous! Crumbelievable, even."