A "mini reunion" refers to a small gathering or meeting where a small group of people come together again after a period of time. It is typically used when people who haven't seen each other in a while meet up for a short and informal get-together.
Sentences with «mini reunion»
One Direction may be on a break, but there are still ample opportunities for mini reunions! (myintimcity.com)
Winter break doubles as a mini reunion for college - age kids. (thespruce.com)
So, in April, we decided we needed to change our lack of hanging out and have a mini reunion! (tayonthemove.com)