jag

noun

1.
a sharp projection on an edge or surface
Derived from:
jag jaggy
2.
a slit in a garment that exposes material of a different color underneath; used in Renaissance clothing
Derived from:
jag
3.
a flap along the edge of a garment; used in medieval clothing
dag
Derived from:
jag
4.
a bout of drinking or drug taking