As I was publishing this post from John Maloney, I thought I would look up the word gig ... it makes for an interesting read.
The 'gig economy' is dopey. Always had a problem w/the term.
For me, a gig is a trident tip spear used for gigging. Period.
Growing up in rural and coastal Connecticut, from April to November, gigging was a principal pastime. We'd go after anything gigable, but mostly bullfrogs and flounder. It was very effective.