An Entry Thursday, October 1, 2026
The Thiccctionary
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A 600-pound Atlantic bluefin tuna in a trap net off Favignana, Sicily, with a diver for scale.

Plate CXXVI. A 600-pound Atlantic bluefin tuna in a trap net off Favignana, Sicily, with a diver for scale.

Photo by Danilo Cedrone (UN FAO), public domain, via Wikimedia Commons

Bluefin Tuna

/BLOO-fin TOO-nuh/  n.
  1. 1. A warm-blooded ocean fish (Thunnus thynnus) shaped like a torpedo that kept eating; widest just behind the gills, it tapers to a tail that does all the work while the middle collects the compliments.
  2. 2. colloq. Proof that thiccc has a market price. In 2019 a 612-pound bluefin sold at Tokyo's Toyosu auction for $3.1 million, roughly $5,000 a pound, and not one bidder called it heavy.
In a sentence:

"The buyer did not haggle. You do not haggle with a fish that thiccc; you bow, you pay, and you clear your afternoon."

Etymology:

From blue + fin (its finlets flash steel blue) + tuna, via American Spanish atún, from Arabic al-tūn, from Greek thýnnos, probably from thýnō, 'to dart.' The Greeks named it for its speed. The auction house prices it by the pound.

From the desk

Filed by

Margie Whitmore-HessianEditor-in-Chief

The Monaco fish market had one on ice and the other buyers simply stepped back, which I respected.

Ruling ADMITTED

Bart PrussSenior Cataloguer

Not torpedo-shaped. Torpedo-adjacent. The widest point is aft of the gills and forward of the tail. That is a different argument. Admitted.

In the margin

Eliza HartwellStaff Writer

The Greeks named it for speed. The auction house prices it by the pound. The fish has not updated its biography to reflect current priorities.

Frequently asked

Is a bluefin tuna thiccc?

Yes. Bluefin Tuna was admitted to the Thiccctionary on October 1, 2026 and filed in the Natural Specimens section. The ruling on file: Admitted. Every subject in the catalogue is judged on its curves, not its size.

What makes a bluefin tuna thiccc?

Proof that thiccc has a market price. In 2019 a 612-pound bluefin sold at Tokyo's Toyosu auction for $3.1 million, roughly $5,000 a pound, and not one bidder called it heavy.

Is "thiccc" spelled with three c's?

Yes. The Thiccctionary house spelling uses three c's, distinguishing the editorial register from the colloquial "thicc" (two c's) and standard "thick" (one c).

Sources

  1. Photograph by Danilo Cedrone (UN FAO) (public domain), via Wikimedia Commons. Catalogued under plate CXXVI.
  2. Direct ruling URL: thiccctionary.com/is/bluefin-tuna-thiccc/, the shareable "Is a bluefin tuna thiccc?" page.
  3. Cross-reference: Thiccctionary A-Z, B.
  4. Catalogued under: Natural Specimens. See related entries below.
  5. Editorial review: ruled admitted by the desk. Objections on file.

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