'free-base' definitions:

Definition of 'free-base'

From: WordNet
verb
Use (purified cocaine) by burning it and inhaling the fumes [syn: free-base, base]

Definition of 'free-base'

From: GCIDE
  • free-base \free-base\, Free base \Free" base`\(fr[=e]" b[=a]s`), v. i. To ingest the basic form of a narcotic drug, usually by injection. [PJC]