keyhole fly

noun

A vertical slit in some types of men's underwear, used for urination.

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Meanings

nounkeyhole fly (plural keyhole flies)

plural keyhole flies

  1. A vertical slit in some types of men's underwear, used for urination.
Cite this entry
APA

keyhole fly. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/keyhole%20fly

MLA

“keyhole fly.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/keyhole%20fly. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “keyhole fly,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/keyhole%20fly.

Source: keyhole fly on Wiktionary, CC BY-SA 4.0.