DictionarymainlineInjection into a vein
verb

mainline

To take a drug directly into a vein.

The patient tells her doctor that she mainlines heroin.

Etymology

Mainline first names a principal route or channel. The drug-use verb applies that transport image to injecting a substance directly into a vein and thus into circulation.

More examples

  • He used to mainline drugs but is now in recovery.
  • She seeks help to stop mainlining heroin.
  • The counselor asks whether he has ever mainlined a drug.

Forms

mainline · mainlines · mainlined · mainlining

Similar words

inject
Inject does not specify that the substance enters a vein.