A shindig is a party, usually one that's big, loud, and noisy. People throw shindigs to celebrate.
This is a word for parties, especially parties that are wild and crazy. Shindigs — which are similar to hoedowns — usually involve dancing and music. A big birthday party is a shindig. A massive holiday party is a shindig. At a shindig, you'll find drinking, eating, games, and other forms of fun. If only three people show up to a party, that's not going to be much of a shindig. At a shindig, people are really whooping it up.