Mack truck

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Mack truck

Where it comes from

Named after the Mack brothers who founded the company in 1900.

noun Mack trucks

A motor vehicle produced by Mack Trucks, especially a semi-trailer. their hearts were too small to pump blood to their huge bodies. It was like trying to run a Mack truck on a Volkswagen engine, and their hearts gave out.
A semi-trailer of any brand. Abuses committed by overly aggressive states have resulted in federal rules and paperwork motivated by the fear that without rules and record-keeping requirements, states would show up at the Treasury with a Mack truck to take away all the cash they could.
figuratively Any unstoppable or enormous thing coming through. I sprung out of bed and was shoved back by a Mack truck of a headache. I powered through and felt my way to the door, focusing on a sliver of grayish light glowing through the curtains.

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MLA

"Mack truck." Wiktionary, via Micwyn, micwyn.com/word/mack%20truck. Accessed 6 Nov. 2026.

APA

Mack truck. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/mack%20truck

Chicago

"Mack truck." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/mack%20truck.

BibTeX

@misc{mack_truck_2026,
  title = {Mack truck},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/mack%20truck},
  urldate = {2026-11-06}
}