Read the dictionary definition of jag. All definitions for this word.
1. a bout of drinking or drug taking
2. a flap along the edge of a garment; used in medieval clothing
3. a slit in a garment that exposes material of a different color underneath; used in Renaissance clothing
4. a sharp projection on an edge or surface
1. he clutched a jag of the rock
5. cut teeth into; make a jagged cutting edge