Mexican Jellyfish Share definition Flag Used condoms floating around in the blue liquid inside of a portable toilet. Man I really need to take a dump but there's way too many Mexican Jellyfish in the Port A John to risk an STD. Mexican Jellyfish by Bulldog13 September 13, 2016 0 0 Get merch Get the Mexican Jellyfish mug. Buy Now — $32.95 See more merch