penis fish

noun

A candiru, a parasitic catfish of the genus Vandellia, alleged to be able to enter the human urethra.

Similar
fat innkeeper worminnkeeper worm
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Meanings

nounpenis fish (plural penis fishes or penis fish)

plural penis fishes

  1. A candiru, a parasitic catfish of the genus Vandellia, alleged to be able to enter the human urethra.
  2. Any of certain species of Urechis worm, including:
    1. Urechis caupo, a North American spoon worm.

      Synonyms: fat innkeeper worm

    2. Urechis unicinctus, an East Asian spoon worm.

      Synonyms: fat innkeeper worm

Synonyms & antonyms

nounUrechis caupo, a North American spoon worm.

Similar
fat innkeeper worm

nounUrechis unicinctus, an East Asian spoon worm.

Similar
fat innkeeper worm

worm

Similar
innkeeper worm
Broader
Urechis

Origin

From penis + fish. * (catfish): From its apocryphal ability to enter the penis. * (worm): From its appearance resembling a human penis.

Full word history & related roots →
Cite this entry
APA

penis fish. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/penis%20fish

MLA

“penis fish.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/penis%20fish. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “penis fish,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/penis%20fish.

Source: penis fish on Wiktionary, CC BY-SA 4.0.