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A stupid person; a dolt.
[Reduplication and alteration of dumb.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a stupid person.
[appar. reduplication and resp. of dumb]
a hollow-nosed or soft-nosed bullet that expands on impact, inflicting a severe wound.
[1895–1900; after Dum-Dum, suburb of Calcutta, India, where the bullets were made]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
n (inf) → Doofie m (inf)
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007