Person 2: "Um, I think you've seriously gotta cut the acid. That's the McDonald's sign."
Ok seriously if you haven't tripped, you haven't tripped and you don't know what it's like. Period. There should be a law against kids throwing the word "trippy" around like candy, except that it's not like millions of americans follow every single law anyway, felonies be damned. Actually I follow the law and I don't smoke marijuana, just clean, healthy tobacco.... Whatever.
Girl: you may be zonked on shrooms but I dig what you're saying. That's some trippy stuff
Pink Floyd, The Flaming Lips, Hendrix, all decidedly trippy music
I suppose trippy is a very subjective word
Kid: Man, that Gantz Graf DVD is trippy!
Other guy: Yeah, I kno... wait... since when have you tripped on anything?
Kid: I don't do drugs.
Other guys: ... wtf?