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[goof-bawl] /ˈgufˌbɔl/
noun, Slang.
an extremely incompetent, eccentric, or silly person.
a pill containing a barbiturate or a tranquilizing drug.
Origin of goofball
First recorded in 1935-40; goof + ball1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for goofball


noun (US & Canadian, slang)
a barbiturate sleeping pill
a fool
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
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Word Origin and History for goofball

"narcotic," 1938, from goof + ball (n.1); as an intensive of goof (n.), it dates from 1959.

Online Etymology Dictionary, © 2010 Douglas Harper
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goofball in Medicine

goofball or goof ball
A barbiturate or tranquilizer in the form of a pill, especially when taken for nonmedical purposes.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Slang definitions & phrases for goofball



  1. A stupid and clumsy person; goof: roles that earned him the affectionate labeling as a ''goof ball'' (1959+)
  2. An eccentric person; oddball, weirdo (1959+)
  3. A pill or capsule of Nembutal2 (1940s+ Narcotics)
  4. A barbiturate, tranquilizer, etc, used as a narcotic: took over three hundred goof balls (1940s+ Narcotics)
  5. A portion or dose of a narcotic; ball, gb: A goof ball is a narcotics preparation which is burned on a spoon and inhaled (1930s+ Narcotics)
  6. Marijuana (1930s+ Narcotics)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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