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The Spongebob Squarepants fanatic's way of say "shit", as in you messed up, or "damn it".
Patrick, "I lost the tickets Spongebob."

Spongebob, "Oh barnacles"
by PH34R3ST June 07, 2005
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May 7 Word of the Day
Paper product used as a barrier against unwanted messes, such as the liner at the bottom of a bird cage.
Please put a New York Times under that before it gets all over the place.
by Phaedrus331 February 12, 2021
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1. A small marine organism with a shell that clings to rocks and ships.
2. A clinging or dependent person or thing
3. A large zit or scab
4. An exclimation used by Sponge Bob Square Pants meaning "shit" or "fuck"
1. Based on the number of barnacles stuck to this sunken ship, I deduce that it must have been here for a while.
2. God, I hate Henry! The little barnacle won't leave me alone!
3. Did you see the barnacle on Lisa's face?! It was huge!
4. Patrick: "I'm not actually gay, Sponge Bob."
Sponge Bob: "Oh barnacles!!"
by D-Vo January 21, 2006
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A person who attaches themselves to any living being surrounding them as a form of comfort. Cuddling, spooning and snuggling are also correct terms. A barnacle latches on to anyone in sight and does not let go.
Cheyenne: Oh hey kirsten! How are you?
*Kirsten latches on to cheyenne*
Kirsten: Now im better!
Cheyenne: Oh kirsten! You barnacle, you!
by astoldbyginger February 29, 2008
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Some biomass on the ceiling with a tounge from the boarder worldxen When you touch said tounge it pulls you up into the "mouth" and eats you
it can be killed via any weapon in the game or physics object (exclusive to half life 2)
it also generated alot of por-
they also like do this creepy ass thing where they launch their tounges in a certurn direction.
Friend:try to see if you can go across inside that room
Me:i cant the barnacle is going to do the toungy thingy
by Agent Stamos November 08, 2020
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A slut or a person who has multiple sexual partners. Biologically speaking, a barnacle can mate with multiple partners at the same time through the use of tentacles.
Mary - "Lucy just got with 5 boys at once. She's such a barnacle."
by lols_royce January 31, 2010
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The word used to describe a person whom waits until the very last second of a conference call to make their presence known
Sally is such a trashy barnacle! She attached herself to the weekly Webex like a parasite, adding less-than-zero value, until it came time for her to announce her presence to management!
by 16vjohnson December 11, 2018
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