a vulva emanating a fish-like odor, often the result of poor hygiene. Most often apparent after the sushipoon's owner has exposed her vulva rot either in a public restroom (or close to your face), allowing the scent to assault the nostrils of those unfortunate enough to be nearby.
Erin walked into a recently used bathroom stall, and was assaulted by the overripe scent of the previous skank's sushipoon.
by mmmboyes March 5, 2010
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