jellyfish 

a hard core gamer who hasn't seen the light of day in weeks, giving them the same see through complexion as a jellyfish.

that guy never misses..must be a jellyfish

jellyfish by muvimkr September 28, 2011

Jellyfish 

A woman who is great to look at, but dangerous to get close too.

"She's hot! Too bad she's a jellyfish... That girl is crazy as hell, she'll stab you during foreplay..."

Jellyfish by DaRealMan March 16, 2013

jellyfish 

A fish made out of jelly

Jellyfish are jellylike

jellyfish by Brain Villela January 19, 2005

Jellyfish 

A Jellyfish is what you make when you wack off into a glass of water. The result is a partially floating, dangling, jizz strand that looks like a jellyfish.

"So did you hook up with whats-her-name last night?"

"No dude, I just went home and made a jellyfish."

Jellyfish by El Spicy Taco October 15, 2008

jellyfish 

A free-swimming, gelatinous, often bell-shaped creature with a basic nervous system and the ability to sting prey. (Sometimes confused with or sometimes seen as moon jelly.)

A weakling or someone who lacks strong character.

Apparently, several interesting euphemisms, all of which can be found right here.

"You're such a jellyfish," said my sister after I dropped my books for the third time and protested that they were heavy.

jellyfish by tomato-greens December 28, 2005

jellyfish 

a successfully used condom filled with ejaculate

that was fun baby, let me throw away this jellyfish

jellyfish by chasingorion February 3, 2010

Jellyfish 

Awesome. Really cool. A common synonym is: bomb, but cannot be used with 'the' preceding the word.

'The Jellyfish' is incorrect.

'Jellyfish' is correct.

Person A "Dude, why are you allowed to do that...?"
Person B "Cos I'm Jellyfish..."

Person A "DUDE LOOK AT THAT THING OVER THERE. it's jellyfish!"

Jellyfish by chiangchiangchiangchiangchiang December 6, 2010