1. Beyond turned on.
2. To personally know many important people in high positions that can be called upon for favors.
3. An intelligent person who is also on the ball.
1. Seeing your titty text made me so switched on I can't stand it.
2. Cain didn't have any problem finding a job because his father is so switched on.
3. You can trust what Willy says because he really is switched on.