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thumber

American  
[thuhm-er] / ˈθʌm ər /

noun

Informal.

  1. a hitchhiker.

Etymology

Origin of thumber

First recorded in 1930–35; thumb + -er 1

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.