WordNet (r) 3.0 (2006):

scag
    n 1: street names for heroin [syn: big H, hell dust, nose
         drops, smack, thunder, skag, scag]

Moby Thesaurus II by Grady Ward, 1.0:

83 Moby Thesaurus words for "scag":
   Amytal, Amytal pill, Demerol, Dolophine, H, Luminal, Luminal pill,
   M, Mickey Finn, Nembutal, Nembutal pill, Seconal, Seconal pill,
   Tuinal, Tuinal pill, alcohol, amobarbital sodium, analgesic,
   anodyne, barb, barbiturate, barbiturate pill, black stuff, blue,
   blue angel, blue devil, blue heaven, blue velvet, calmative,
   chloral hydrate, codeine, codeine cough syrup, depressant,
   depressor, dolly, downer, goofball, hard stuff, heroin, hop, horse,
   hypnotic, junk, knockout drops, laudanum, liquor, lotus,
   meperidine, methadone, morphia, morphine, narcotic, opiate, opium,
   pacifier, pain killer, paregoric, pen yan, phenobarbital,
   phenobarbital sodium, purple heart, quietener, rainbow, red,
   secobarbital sodium, sedative, shit, sleep-inducer, sleeper,
   sleeping draught, sleeping pill, smack, sodium thiopental,
   somnifacient, soother, soothing syrup, soporific, tar,
   tranquilizer, turps, white stuff, yellow, yellow jacket



The Jargon File (version 4.4.7, 29 Dec 2003):

scag
 vt.

    To destroy the data on a disk, either by corrupting the filesystem or by
    causing media damage. ?That last power hit scagged the system disk.?
    Compare scrog, roach.


The Free On-line Dictionary of Computing (30 December 2018):

scag

   To destroy the data on a disk, either by corrupting the
   file system or by causing media damage.

   Compare scrog, roach.

   [Jargon File]

   (1995-01-16)