(1)A gigantic, amazing, euphoric bowel movement often resulting in a sigh of relief and a story to tell all when you have exited the bathroom. A truely memorable defication.

(2)To dominate a person or persons in any competitive event.
(1) "I had the best poopie mommy this morning when I woke up, I need to cut back on the late night munchies."

(2) "Wow that was a pathetic performance on your part, we poopie mommied all over your face."
by PoopieMommyOnFace September 4, 2009
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Slang term for dirty cocaine. Usually used in the mid-west region
Bro my homie got some mommy poopy and he's fucked up now.
by mommypoopyman October 30, 2020
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