Search Result for "mainline": 
Wordnet 3.0

VERB (1)

1. inject into the vein;
- Example: "She is mainlining heroin"



The Collaborative International Dictionary of English v.0.48:

mainline \main"line`\ (m[=a]n"l[imac]n`) v. t.
   1. to inject (illegal drugs) into the vein; as, he preferred
      to mainline heroin rather than sniff coke.
      [WordNet 1.5]


WordNet (r) 3.0 (2006):

mainline
    v 1: inject into the vein; "She is mainlining heroin"