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or free-base

[free-beys] /ˈfriˌbeɪs/ Slang.
verb (used with object), freebased, freebasing.
to purify (cocaine) by dissolving in ether, sodium hydroxide, etc., and filtering off the precipitate.
to ingest (freebased cocaine).
verb (used without object), freebased, freebasing.
to freebase cocaine.
freebased cocaine.
Origin of freebase
1975-80; free + base1
Related forms
freebaser, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for freebase
Contemporary Examples
Historical Examples
  • Crack or freebase rock is extremely addictive, and its effects are felt within 10 seconds.

    What Works: Schools Without Drugs United States Department of Education
  • Preparation of freebase, which involves the use of volatile solvents, can result in death or injury from fire or explosion.

    What Works: Schools Without Drugs United States Department of Education
British Dictionary definitions for freebase


(slang) cocaine that has been refined by heating it in ether or some other solvent
verb freebases, freebasing, freebased
to refine (cocaine) in this way
to smoke or inhale the fumes from (refined cocaine)
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 freebase

1980 (noun and verb), in reference to cocaine. As a chemical process, it returns a salt form of an alkaloid to its pure form. Related: Freebased; freebasing.

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for freebase


v,v phr

To use cocaine by heating it and inhaling the smoke, its most powerful essence: The addiction problem seems to be compounded by the fact that so many cokeheads are freebasing it (1970s+ 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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