The act of ripping a rancid fart in a sleeping bag and holding it in all night, rendering any clothing involved completely saturated in a sulfurous odor. Thus, causing you to jump out of the sleeping bag in the morning, strip away your clothes, and air them out in a flapping motion, similar to the action of an emerging butterfly shedding its cocoon and drying out its wings in order to complete its transformation.
Al completely ruined his camping trip due to a Cleveland Cocoon.
by BallsDeep2010 April 15, 2010

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