To strike another's perineum (the taint) with one's fingertips, which are reinforced by one's hands pressed together as if in prayer.
Garcia broke his finger trying to poon chuck a freshman's taint.
by Wraithed January 19, 2015
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To take one's hand like you are holding a bowling ball, insert your fingers into a woman's orifices (vagina and anus) and chuck (throw) her as far away from you as possible.
This bitch kept getting in my face and I had to "poon chuck" her ass across the room.
by beerluvnmp August 11, 2009
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