1. exit stage left - Noun
2. exit stage left - Verb
exit stage left (plural exits stage left)
(idiomatic) An orderly and uneventful departure, timed so as not to detract or distract.
To exit or disappear in a quiet, non-dramatic fashion, making way for more interesting events.
(imperative) Leave the scene, and don't make a fuss.
Source: en.wiktionary.org