ˈSHinˌdiɡ/
noun informal

1. a social gathering with dancing
2. a usually large or lavish party

Google definitions had this to add:

1. a large, lively party, especially one celebrating something.

Now, if you listen to any of the turkeys over at Urban Dictionary, they’d all have you believe a shindig is a small affair, consisting of anywhere from 5 to 20 people. One bozo even suggests it can contain no more than 12!

That’s why Webster’s is Webster’s and these idiot kids are logged into Urban Dictionary from their mom’s laptop.

No one better try curtailing our shindig, particularly not because some dildo in the cafeteria uses it improperly. No, we’re going definitive with our socially lavish and lively gathering that’s celebrating something.

And around here, that something is Halloween, which encompasses jack-o-Lanterns, trick or tricking and and all sorts of spooky shit of a generalized nature. That definitely includes Monsters.

From Hanna-Barbera’s 1965 record of the same name, Monster Shindig looks to muscle in on Boris Pickett’s racket by throwing their characters Super-Snooper and Blabber Mouse into the mix, stumbling upon just this type of haunted jamboree.

The cat and mouse team doesn’t show up in the song however, leaving this bizarro tune free to roam around the streets on Halloween night.