A hollow-point small-arms bullet designed to expand upon impact, inflicting a gaping wound.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "dumdum" in a sentence
"Does ‘any means necessary’ include dumdum bullets?"
"And even though some of what he thought about vampires had proved to be hopelessly wrong, a dumdum bullet to the face would stop anything for a while."
"But Stacie, who has an MBA from Harvard, isn't in a hurry to show them homes of any price range, proving yet again that she's no dumdum."