An Entry Friday, September 4, 2026
The Thiccctionary
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Knitted hot water bottle with a green stopper.

Plate XCIX. Knitted hot water bottle with a green stopper.

Photo by Yuliia Pakhomova on Unsplash

Hot Water Bottle

/hot WAH-ter BAH-tul/  n.
  1. 1. A stoppered rubber flask filled with hot water to warm a bed on a cold night, often dressed in a knitted or fleece cover.
  2. 2. colloq. Two liters of warm water in a soft rubber body that widens toward the base and narrows at the neck. Put a knit sweater on her and she only looks more committed to the silhouette.
In a sentence:

"On cold nights the thiccc hot water bottle is the first thing out of the drawer: full to the neck, warm all the way through, and sitting heavy in the bottom of its sweater."

Etymology:

Hot + water + bottle (Old French bouteille, from Late Latin butticula, a little cask). The rubber version was patented by Croatian inventor Slavoljub Penkala in 1903. A little cask, wearing a sweater.

From the desk

Filed by

Teddy VanceJunior Cataloguer

Full to the neck, wearing a sweater, and patented in 1903 by someone named Slavoljub Penkala.

Ruling ADMITTED UNDER PROTEST

Bart PrussSenior Cataloguer

The stopper is the structural argument. The knitted cover is atmospheric. Admitted on the flask. The sweater is noted but not credited.

Frequently asked

Is a hot water bottle thiccc?

Yes. Hot Water Bottle was admitted to the Thiccctionary on September 4, 2026 and filed in the Domestic Goods section. The ruling on file: Admitted under protest. Every subject in the catalogue is judged on its curves, not its size.

What makes a hot water bottle thiccc?

Two liters of warm water in a soft rubber body that widens toward the base and narrows at the neck. Put a knit sweater on her and she only looks more committed to the silhouette.

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 Yuliia Pakhomova, via Unsplash. Catalogued under plate XCIX.
  2. Direct ruling URL: thiccctionary.com/is/hot-water-bottle-thiccc/, the shareable "Is a hot water bottle thiccc?" page.
  3. Cross-reference: Thiccctionary A-Z, H.
  4. Catalogued under: Domestic Goods. See related entries below.
  5. Editorial review: ruled admitted under protest by the desk. Objections on file.

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