What is he invited me out with his friends?

The phrase "he invited me out with his friends" suggests that someone has asked you to join them for a social gathering with their group of friends. This could be anything from going to a restaurant or bar to attending a party or concert.

If the invitation is coming from someone you're interested in romantically, it could be a sign that they want to spend more time with you and introduce you to their social circle. For friendship-based invitations, it may simply be a way to include you in their existing group of friends and get to know you better in a fun and casual setting.

Overall, being invited out with someone's friends is a positive social gesture that shows they value your company and want to spend time with you. It's a great opportunity to make new connections and enjoy a lively social experience with other like-minded individuals.