When a man and woman have sex in a pool and the man pulls out at the last second and shoots his "jellyfish" into the water. This can and should be enhanced by being performed at night in a pool with lights making the jellyfish glow. This move can also be performed with gay males, or even a solo male.
1. I came by your house last night to use your pool. I ended up giving your sister a jellyfish.

2. I jellyfished your sister.
by Captain J. Sizzle April 26, 2011
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a person who always inserts a veiled, stinging remark into a general conversation.
PAM: "I was trying on the pants, and I asked her what she thought and she said, 'Those pants would look good on someone who didn't have cellulite'."

RENE: "Fucking Jellyfisher!"
by Ashley Wedding September 26, 2005
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Jellyfishing is a term used to describe a feeling experienced in two circumstances:

1) Post-coital jizz lingering in your vaginal passage following unprotected sex.
2) Whilst experiencing the heavier side of your menstrual cycle.

In both instances, usually when moving from a horizontal or seated position to standing, the squeezy 'splodge'-like feeling of each substance exiting the mouth of the vagina feels like that of a jellyfish squirming its way out.

*Note*: neither can be felt whilst a tampon is in use as this stems the requisite out-flow prior to its exit.
1) Can I borrow a pad? Jack and I banged 4 times last night and I'm seriously Jellyfishing today!

2) FYI, this period is a heavier one and I'm Jellyfishing so much right now.
by DBBitches January 19, 2017
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A sport enjoyed by the inhabitants of Bikini Bottom. i.e Spongebob
Spongebob:Squidward won't come jellyfishing with us!
by Meathawk January 3, 2005
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To be covered in a multitude of hickies several of which appear to lead in rows from one part of the body to another and resembling a sting track caused by the tentacles of a jellyfish.
Did you see the number of hickies going all the way down her neck? She was jellyfished!
by Greenman88 August 12, 2009
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Verb-- The act if becomming so unbelievably drunk that your body takes on traits of a jellyfish. You have no brain, bones, eyes, or clue where you are or what you're doing.
Scott: "Holy shit what the hell happened last night? I don't remember leaving the bar!"

Amy Jo: "Yeah bud you were jellyfishing hardcore! We just sat across the bar and laughed at you."
by sbaue September 27, 2013
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