1. interjection An exclamation of surprise, disbelief, and/or incredulity. Sally’s brother is dating my cousin? Get out of here! You just won the lottery? Get out of here!
2. verb To leave or depart from a specific place. Also used as a command to do so. I think we’d better get out of here, things are starting to look a little bit rough. Get out of here, you hooligans!