What does a wave of rich women mean?

A wave of rich women get together, which means a group of rich women get together.

Extended data:

Get together, a Chinese word, pinyin zhāduι, is a dialect, which means that many people get together and there are groups who do something together.

Source:

Hangzhou Daily 1989. 1.28 quoted Economic Weekly: "Motorists can leave passengers on the way to do private affairs, ticket sellers can get together to chat and ignore customers, and the police can stand by when they see gangsters grabbing watermelons ... saying that they have been' corrupted' by bourgeois ideas, and the bourgeoisie will be wronged.