DICT.TW Dictionary Taiwan

 Jag n.  [Written also jagg.]
 1.  A notch; a cleft; a barb; a ragged or sharp protuberance; a denticulation.
 Arethuss arose . . .
 From rock and from jag.   --Shelley.
    Garments thus beset with long jags.   --Holland.
 2.  A part broken off; a fragment.
 3.  Bot. A cleft or division.
 4. A leather bag or wallet; pl., saddlebags. [Scot.]
 5.  Enough liquor to make a man noticeably drunk; a small “load;” a time or case of drunkeness; -- esp. in phr. To have a jag on, to be drunk. [Slang, U. S. & Dial. Eng.]
 Jag bolt, a bolt with a nicked or barbed shank which resists retraction, as when leaded into stone.