A sexually indiscriminate woman; a slapper. A conflation of the word jizz with '-oon', to evoke a spitoon, as it were, for glob. Like the cuspador, a place you can release problem fluids where spitting them at the wall isn't a graceful option.
I found half a dozen foil wrappers and a pack of gonorrhea pills in Trish's handbag again. That bitch is a Forrestal-class jizzoon.
Uncontrollable (or consistently controlled) ejaculation without the use of hands, very similar to BlueTooth hands free devices in that regard.
That sweet babe gives me jizzorrhea. There is a constant flow of semen coming out of my penis. It is erect and overflowing like a mighty volcano of love.
That sweet ass goat doesn't give me jizzorrhea, but it gives Kyle a massive explosion of jizzorrhea. I think he's going to be splooging for the next 42.6 hours.