shindig \SHIN-dig\ noun. 1 a : a social gathering with dancing. b : a usually large or lavish party. 2 : fracas, uproar.
Why are parties called shindigs?
It sounds like it might be a reference to rowdy dancing—the kind in which people kick wildly and end up digging their feet into each other's shins—but it may be based on the word shindy, meaning “quarrel” or “commotion” (or “party”). ... That's because shindig sounds like a word from olden times.
What's a shindig mean?
1a : a social gathering with dancing. b : a usually large or lavish party.