Mansfield bar

noun

An underride guard installed on the rear of large trucks or trailers to prevent smaller vehicles from sliding underneath in the event of a rear-end collision.

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Meanings

nounMansfield bar (plural Mansfield bars)

plural Mansfield bars

  1. An underride guard installed on the rear of large trucks or trailers to prevent smaller vehicles from sliding underneath in the event of a rear-end collision.

    He survived. Amber would have been decapitated if not for the Mansfield bar.

    2024 September 24, Jordan Peele, John Joseph Adams, Out There Screaming: An Anthology of New Black Horror, Random House, →ISBN, page 275

Origin

Named after American actress and singer Jayne Mansfield, who was killed in the kind of car accident that such a bar might have prevented.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

Source: Mansfield bar on Wiktionary, CC BY-SA 4.0.