To leave a vehicle, aircraft, etc. She got off the bus at the next stop.
To escape a punishment or avoid being caught. He got off with just a warning from the police.
To start a journey or leave a place. We need to get off early to avoid traffic.
To stop discussing a particular subject. Let's get off this topic and talk about something else.
To experience a high or excitement, often from drugs. He got off on the thrill of the roller coaster ride.