When someone takes on another's feelings for a third person, especially dislike.
Person 1: That girl didn't like me, and now she's making others dislike me as well.
Person 2: They're all jellyfish.
by Monster-Punk-Barbie December 25, 2015
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When a man ejaculates into his hand, then spreads his semen on his shlong, he then dips it in a glass of salt water, and proceeds to urinate in the glass, and a woman drinks the contents of the glass, leaving her with a sting in her throat
Man, this girl as a freak! She asked me to make her The jellyfish
by FatXenomorph December 7, 2019
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The act of going-with-the-flow. When a person is confronted with a decision or confrontation, and chooses to not act.
"Hey Tim, should we go out tonight or stay in?"

"I don't care."

"Quit jellyfishing and make a choice!"
by Mykel-Miracle October 4, 2009
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A free-swimming aquatic creature. It starts life as a larva, which attatches itself to a rock or other solid substance and develops into a polyp; eventually the polyp grows into the familiar bell-shaped organism.

Most jellyfish have tentacles and a basic nervous system, though they lack more complicated organs, and they are allegedly composed of about 95% water. They usually catch their prey by brushing potential victims with their poison-spouting, long tentacles, which can be anywhere from inches to several feet long.

Pl. jellyfish

Slang: various sex acts.
Sometimes, during low tide, one sees jellyfish lining the shores.
by tomato-greens January 14, 2006
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An adjective used to describe anything at all. Seriously, anything. It adapts to any situation, leaving people curious as to the meaning. It is meaningless, which makes it oh so meaningful.

(It's also a gnarls barkley sea creature that stings you and whatnot)
Man, that slut is lookin totally jellyfish! Hell yeah!

I don't know, I felt like the yams were a little too jellyfish this year.


by eed258 January 9, 2009
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When a person puts a hand in for a high five, but just before the kill, the giver of the high five wriggles their hand away, and annoyingly shouts "jellyfish!"
Jill went to high five Matt as congratulations, then she Jellyfished him.
by Mrs.Morphine December 19, 2008
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N., a statement that sounds like a compliment but, the more you think about it, the more it stings like an insult. So named because, like a jellyfish, you don't feel it at first, but the longer you leave it on, the more it stings.
Chick #1: She was like, "You actually look nice today," and I was like, "Thanks." But then I'm like, what the fuck was the purpose of "actually"? Was she saying I don't usually look nice?
Chick #2: She said a total jellyfish to you, bitch.
by nappy pappy April 27, 2008
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