Noun

1. A performing engagement by a musical group; or, generally, any job or role for a musician or performer.

   I caught one of the Rolling Stones' first gigs in Richmond.

   Hey, when are we gonna get that hotel gig again?

   Our guitar player had another gig so we had to get a sub.

2. Any job; especially one that is temporary; or alternately, one that is very desirable.

   I had this gig as a file clerk but it wasn't my style so I left.

   Hey, that guy's got a great gig over at the bike shop. He hardly works all day!

3. A gigabyte; often written GB or gb.

   This picture is almost a gig; don't you wanna resize it?

   How much music does it hold? A hundred and twenty gigs.

4. A two-wheeled horse-drawn carriage.
5. A forked spear for catching fish, frogs, or other small animals.
6. A six-oared sea rowing boat commonly found in Cornwall and the Isles of Scilly.

Verb

1. To catch with a gig.
2. To engage in musical performances.

   The Stones were gigging around Richmond at the time

3. To make fun of; to make a joke at someone's expense, often condescending.

   His older cousin was just gigging him about being in love with that girl from school.