1 definition by Donkeykong619

Top Definition
Is when a girl is giving you a blow job and before you cum you turn her around and cum in her butt.
Last night I got a BJ but not just any BJ I got a CooperBJ.

She told me to turn her around for the ultimate BJ she called it the Cooper BJ.

Total eclipse of the heart.
#girl #when #cum #her #butt
by Donkeykong619 November 07, 2011
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