raid

In internet slang, raid means a bunch of people quickly jump from one live stream to another, usually at the end of a stream, to boost the new streamer’s viewers, chat activity, and vibes. It is basically a friendly “take my audience to the next party,” not a police thing. Real-life equivalent, it is like your friend yelling “my place is boring, go to that other house, they have snacks,” and suddenly everyone files in. (kotaku.com