An adjective meaning cool, freaky, groovy, amazing, or all of the above, depending on the context in which it's used. Although "trippy" is a fairly new word, the root word, "trip," refers to soft psychedelic trips and has been in use since the 60's.
Person 1: "Whoa, dude. Those yellow fractals in the air are pretty trippy..."

Person 2: "Um, I think you've seriously gotta cut the acid. That's the McDonald's sign."
by Idioteque December 13, 2005
Get the trippy mug.
Is defined as crazy or wierd.
I fell of the roof...yeah it was pretty trippy.
by Lexy January 11, 2004
Get the trippy mug.
Reminiscent of something one would experience on a trip on a psychedelic substance. acid, shrooms, salvia, maybe even skunk weed (hey you smoke enough of that...). Can be used in reference to sights such as one would see (patterns, fractals, M.C. Escher, Robert Crumb cartoons), music that evokes feelings of trippin', even heady thoughts similar to ones one would think of while tripping.

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.
Dude: Man, like... why do millions of people follow bullshit religions, when like... don't they know they're just making stuff up in their heads? Like... how could anyone think they talk with Jesus in their heads? That's like schizophrenia... man... I don't get some people.
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?
by Dayraven April 28, 2006
Get the trippy mug.
something that stimulates your drug expirience
this music is trippy
by Olaf Dlugosz April 19, 2006
Get the trippy mug.
cray, strange or wierd. usually used when stoned
"Wooowwhhh dude, we're not in the 70's? trippy....."
by charky23 January 19, 2004
Get the trippy mug.
"i saw some trippy shit last time i ate shrooms and had an orgy"
by violent jay July 14, 2002
Get the trippy mug.
Watch Fear And Loathing In Las Vegas. Then you will know the true meaning of trippy.
Raoul Duke (Johnny Depp): "You can turn your back on a person, but, never turn your back on a drug. Especially when it's waving a razor-sharp hunting knife in your eye."

...ergo the trippyness factor.
by h. s. thompson December 18, 2005
Get the trippy mug.