'Skag' definitions:

Definition of 'skag'

From: WordNet
noun
Street names for heroin [syn: big H, hell dust, nose drops, smack, thunder, skag, scag]

Definition of 'Skag'

From: GCIDE
  • Skag \Skag\, n. (Naut.) An additional piece fastened to the keel of a boat to prevent lateral motion. See Skeg. [1913 Webster]