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When one becomes aroused while dismissing of feces from their rectum, and thus masterbates while defficating.
Moopert is as described in the poem below:

poop is good
poop is great
i like to poop while i masterbate.

shit is smelly
shit is sweet
i like to shit while i beat my meat.

crap has corn
crap is crunchy
i like to crap while i spank my monkey.

terd is long
terd is lumpy
i like to terd when i shake my salami.

feces make sound
feces are sharp
i like laying feces while i shoot my darts.

logs are smelly
logs can sting
i like to drop a log while my yogurt i sling.
by Jimmy Little December 05, 2007
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