What does the word jag mean?

Usage examples for jag

  1. " This trip, as usual, I sold him his little jag. – Tales of the Road by Charles N. Crewdson
  2. After that they've given no trouble, but they get on a jag of some kind now and then. – Blake's Burden by Harold Bindloss
  3. Upon the great slopes of St. Angelo one can see every jag and cleft, while further off lie the blue mountains, vague, soft, melting imperceptibly into the pale sky. – Naples Past and Present by Arthur H. Norway