dimbulb

[dim-buhlb, -buhlb]

Origin of dimbulb

An Americanism dating back to 1930–35; dim + bulb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for dim bulb

dim bulb

noun
  1. informal a slow-witted unintelligent person
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012