Definition & Meaning of "ask us anything"in English

What does "ask us anything" mean in internet slang?

It is often shortened to "AUA" and is used when a group of people, such as a team, band, or cast, opens themselves up to questions from an audience, similar to an "AMA" (Ask Me Anything) but for multiple participants. People typically use AUA in Reddit threads, live streams, or podcast episodes to invite fans to ask questions that anyone in the group can answer, such as "We're the dev team of this game, AUA" or "The cast is live now, AUA in the comments."