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rum-dum

American  
[ruhm-duhm] / ˈrʌmˌdʌm /
Also rum-dumb or rum-dumm

noun

Disparaging and Offensive.

  1. a stupid or ignorant person.

  2. a habitual drinker of alcohol who is frequently intoxicated.

adjective

  1. stupid; ignorant.

  2. of, related to, or arising from habitual drunkenness; addled by intoxicating drinks.

Etymology

Origin of rum-dum

First recorded in 1890–95; rhyming compound with rum 1 and dumb, perhaps influenced in sense by humdrum

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.