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tandem trailer

American  

noun

  1. Also called double-bottom, double-trailer truck, tandem.  a very long rig consisting of a tractor pulling two trailers hooked up one behind another.

  2. a semitrailer designed to be hooked up to another part of such a rig.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.