Top definition
During the act of anal sex, or due to insertion of the penis into 1. a female, 2. a male, or 3. an animals anus, particulate matter of feces will escape with the departure of the penus, causing thus forth, a "poop monster"

The "poop monster" has escaped from the cave!
bobo is a gay cheater w00t
by Puppet August 28, 2004
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