turn on

verb

1. cause to operate by flipping a switch"switch on the light"
2. be contingent on"The outcomes rides on the results of the election"
3. produce suddenly or automatically"Turn on the charm"
4. become hostile towards"The dog suddenly turned on the mailman"
5. cause to be agitated, excited, or roused"The speaker charged up the crowd with his inflammatory remarks"
6. to evoke sexual feelings"This movie usually arouses the male audience"
7. get high, stoned, or drugged"He trips every weekend"