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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unwanted dudes that dance on chics, often times these dudes are foreigners or black guys. These guys just latch on and don't let go, they will follow girls off the dance floor and all around the club. Can also be called dingleberrys.
There were a bunch of barnacles on this one cock tease, who was dancing on the dance floor. You could tell she didnt like this dance floor gangbang.
by Big Pimping January 04, 2008
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This word is used to describe an std that you do not know about. Such as if you see a very promiscuous women.
Dude 1: Damn shes hot.
Dude 2: Yah i wouldn't go near her though i here shes got the barnacles.
by Zebragum69 July 26, 2010
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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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An individual (or individuals) whose presence is constant, annoying, unwanted and, most of all, seemingly impossible to free oneself from. The best way to avoid a Barnacle is by way of a "Barnacle Alert," typically administered by SMS or similar technological means. This serves to warn the recipient that a Barnacle is in the area and to steer clear. Barnacles are notorious for flouting the law, so overall it's best to steer clear of them.
"Oh, man, I can't believe you got stuck with the Barnacles last night!"

"Wow! You got Barnacled last night?"

"Can you believe the Barnacles turned up tonight?"

"Who did they Barnacle this time?!"
by Jackson King May 21, 2021
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