Examples
“Things like that John Byrne referred to as barnacles that needed scraping off when it came time to revamp Superman in the 80s.”
“The barnacles are the worst torture that one can undergo.”
“It is affirmed that a certain slimy substance grows in these shells, which falls afterwards into the sea, and is changed into the bird called barnacles [223].”
A General History and Collection of Voyages and Travels — Volume 07
“Or it may have something to do with dislodging the thousands of parasites, such as barnacles, that accrue to the animals 'bellies, chins, and flippers.”
“To control the fouling of the spat by other organisms, such as barnacles, colonial ascidinas, and encrusting algae, the oysters must be”
“In severe winters, flocks of solan geese, locally denominated "barnacles," frequent the shores.”
The Mirror of Literature, Amusement, and Instruction Volume 14, No. 396, October 31, 1829
“Casting a shrewd glance around, he perceived just below him, well within reach, one of his parishioners who was wearing a large pair of what in rustic circles are termed "barnacles" tied behind his head.”
“We find unicorns, mermaids, and mermen; geese developed from the shell-fish known as "barnacles"; we are told that crocodiles may weep, and that sirens can sing -- in short, there is nothing so wonderful to be told of animals that people will not believe the tale.”
Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky
“Oil can kill small organisims, such as barnacles, while degrading seagrasses”
“Scientists who study coastal marine communities had assumed that prey species such as barnacles and mussels would be largely absent in vertical upwelling areas, since the larvae, which float freely in the water as they seek a surface to attach to, would more likely be swept away in the coast-to-offshore currents.”
Lists
These user-created lists contain the word ‘barnacles’.
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MYTH - spooky creatures
takes the form of a, demon, teeth of iron, unicorn, forest spirit, magical eel, savage humanoid, one-horned animal, creature, headless humanoid, disease-bringing ..., rainbow-feathered... and 607 more...
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Twitter favorites
The new favourite words of people on Twitter.
A script searches Twitter for "X is my new favorite word" and adds it to this list.
See also:
grabbable, retuiteando, leaving, fantastic, absolutely, kurwa, hella, ridic, underpass, hate, interlude, plush and 2369 more... -
eggplantia5's Words
scintillate, marvel, cranberry, oscillate, triumph, bamboozle, grimace, magical, book, hexagon, cipher, compendium and 2727 more...
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Jeeki's funny list
And some are believable but just funny sounding. Or funny in concept/definition. Well, to me at least.
honeyfuggle, schwa, interrobang, barnacles, floccinaucinihili..., fustilugs, hippopotomonstros..., tyrotoxism, loofah, kleptomaniac
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duduwriter's Words
inchoate, pent-up, semantic, culprit, corroborating, perpetrator, barnacles
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JohnKarnay's list
Johnny's Token Words: A list of words that I find classy, humorous or just all together underplayed. Some may even be fictional but they work!
humongous, ginormous, ricoculous, gravy, affably, spanglish, lifer, herbvert, mommoocher, barnacles
Tweets
Looking for tweets for barnacles.

johnkarnay I like more as an exclamation in the way the Sponge Bob uses it... "Oh Barnacle!"
It works great when you have children.
Jan 4, 2008