Voldemort type

noun

A data type that is unspeakable.

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Meanings

nounVoldemort type (plural Voldemort types)

plural Voldemort types

  1. computingA data type that is unspeakable.

    A recent issue I discovered (and no doubt has been encountered before) is that using Voldemort types in D can result in insane symbol bloat.

    2016 May 23, Steve Schveighoffer, “Have your Voldemort types, and keep your disk space too!”, in Steve Schveighoffer's Blog
    1 more example

    RandomNumberGenerator becomes a type that is inside generator's scope. It is simply not visible outside of generator. It cannot be named — hence it's a Voldemort Type.

    2012 May 7, Walter Bright, “Voldemort Types In D”, in Dr Dobb's

Origin

Named after the villain Lord Voldemort in the Harry Potter novels, who is typically called "He Who Must Not Be Named" or "You-Know-Who" by other characters.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

Source: Voldemort type on Wiktionary, CC BY-SA 4.0.