n. & v.
n. 1 a a lively dance with leaping movements. b the music for this, usu. in triple time. 2 a device that holds a piece of work and guides the tools operating on it.
v. (jigged, jigging) 1 intr. dance a jig. 2 tr. & intr. move quickly and jerkily up and down. 3 tr. work on or equip with a jig or jigs. jig about fidget.
[ 16th c.: orig. unkn. ]