Top Definition
To completely blow it and endanger yourself and others in a dangerous situation. Downhill Skateboard Racing Legend Kevin Cooper was known for his notoriously dangerous antics on the racetrack and frequently "Cooped out", crashing out his fellow competitors.
"I'm feeling kind of sketchy, don't get too close to me. I feel like I might coop out."
by Roger Bomar April 22, 2010

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