1. (drugs) under the influence of LSD or another hallucinogen.
|Guardian Guide 14–20 Aug. 12: Old guys doing switched-on, tripped-out tribal music.|
2. disorientated, confused, upset.
|Underground Dict. (1972).|
|Straight Outta Compton 9: House niggers who weren’t even invited to sit on the stoop gave Flip, Billy’s tripped-out friend, an excuse to follow suit.|
|Layer Cake 174: I reckon I’d better eat cos otherwise I’m gonna get more light-headed, more and more tripped out.|