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Semen that ends up floating around on the shower floor on its way down the drain.
I can't wait until my girlfriend moves in so I can stop sending shower jellyfish.

I need a girlfriend so I can stop slipping on shower jellyfish.
by pcb1 July 18, 2011
N: Semen that is left on the shower floor that resembles a beached jellyfish, or washed ashore. Jizz
Damn it.... The freakin drains are clogged again cause of all the shower jellyfish-
by will6252 August 05, 2008