Definition

The group photo version of a selfie—a picture taken with a front-facing camera that captures you plus a bunch of other people in one frame. It's also a friendly competition to see who can fit the most people in a single shot.

Example Usage

We took a groupsie at the concert with all twelve of us crammed in, and it was hilariously bad.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=groupsie&defid=7843244)