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A Downriver Jellyfish refers to the aquatic marvel that is indigenous to the southern portion of the Detroit River. Its composition consist of one used latex condom with ejaculate, knotted off and released into the water. Downriver Jellyfish are often observed floating in marinas, canals and occasionally known to wash up on beaches.
"Hey Steve! It must of been a real fuck-fest last night, there is a school of Downriver Jellyfish floating near the boat".
by Lazynugz August 14, 2019
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