The extremely odoriferous, purulent discharge emanating from a vagina. Poon vomit is a clear indicator that the vagina is sick and requires maintenance from certified vagino-mechanic.

Signs that poon vomit are present include a foul odor similar to an open can of tuna left in a Dodge Omni in 95 degree heat for 7 days, frothy accumulation around the vaginal opening that looks Cujo wrapped in panties, and a putrid taste (if you are unlucky enough to have discovered it via oral inspection).
douPoor Mom, she must not be feeling well. She's dripping poon vomit everywhere!
by Rev. Stephen December 6, 2010
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