It means they have to leave or to swerve on someone. Such as ; gtg , there are out, or got to blast. This emoji was made famous by a Jimmy Neutron meme.
by Zumiez Employee November 24, 2017
This emoji is sent when someone wants the other to get off their planet. Sometimes the emoji can be paired with the acronym 'GOMP' meaning "Get Off My Planet"
When a guy is being rude and you are done with his bullshit you simply reply "🚀" and leave it at that.
by gompcity July 19, 2018