Orally emitted fecal vomit.
That girl's pussy was so nasty I retched heaps of festering copremesis all over her grandfathers hairless chest.
by Mike Scretion July 17, 2006
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The condition of being so constipated, one vomits ones own feces.

Usually considered to be a medical emergency.
Copremesis.

The severe cramps in Warrens abdomen turned out to be unrelated to his gym exertions, and more to do with his inability to shit for 3 weeks. It also went a long way to explaining his feculent breath.
by Dangeroux Dave May 24, 2006
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