AskDefine | Define mainline

Dictionary Definition

mainline v : inject into the vein; "She is mainlining heroin"

User Contributed Dictionary

English

Etymology

  • main + line

Adjective

  1. normal, principal or standard.
  2. Of or pertaining to the principal route or line of a railway
  3. Of or pertaining to a surface railway as distinct from an underground, elevated or light rail one.

Synonyms

Verb

  1. To inject (a drug) directly into a vein.

Derived terms

See also

Extensive Definition

Mainline or Main Line may refer to:
In railways:
In other transport:
  • Mainline (flight), an airline carrier's non-regional service
  • A toll road system where all vehicles stop at various locations on the highway to pay a toll
Defunct companies:
In computing:
In religion:
In music:
In linguistics:
In popular culture:
  • Mainline, a slang verb meaning to inject heroin into the bloodstream
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