Where you and your friends each eat an entire box of Fiber One granola bars. Last one to, well, last is the winner. Ideally played in a house with one or two bathroom depending on the size of the group.
me My Friends and I did the fiber one challenge yesterday.

you How did it go?

me We had to be careful not to detonate the gas and destroy the house.
by Mad Gasser of Mattoon June 17, 2011
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aka farter one bars .. eat these thing at your own risk .. the gas these thing will give you .. will scare small children kill small animal in your home.. peel the paint from your walls. and if you are out side they will cause birds to drop out of the sky... and will like get you a visit from the epa..
john: man what happened to your house

steve: i ate a box of fiber one bars .

john: damn !!! your house look like its been through a hurricane

steve : man you dont even want to know
by rip van stinkle January 12, 2012
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