The most effective form of defense when playing basketball against little kids. Consists of a wide-stance and horizontally outstretched arms in a way that "coops" the kid in one position. Shouting "COOP D! COOP D! COOP D! WATCHUGONNADO?!! COOP D! COOP D!" has been known to improve results.
"The little munchkin thought he was the next incarnation of Lebron James until I showed him the COOP D!"
"He soon figured out the only way out of it was to throw between my legs. Such is the power of the COOP D!"
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