Tag-out
From IRC Improv Wiki
A tag-out is an edit where a player from the backline tags on the shoulder (or waves off) one or more players in a scene, ending that scene.
Those who have been tagged are to return to the backline but those who were not tagged remain on stage, as the same characters, in a new situation.
Players who perform the tag-out are new characters.
A tag run is a series of tag-outs performed in succession.