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12.
A powerful psychoactive drug that breaks down subconcious barriers and will make your mind race through the corridors of human perception. While under the influence you'll often hear people say "Dude Im trippin so hard" many many times as a way to come to terms with the phenomena that is occuring. Visual filters in the brain are broken down to let raw, unfiltered data in. It is usually hard to talk and move while your under the influence, so a suggestion would be to find a comfy chair, put some Phish on, and perceive.
Scott: "Dude Im trippin on acid"

Matt: "Stop trying to put a word like "trippin" to the experience your having, just flow with it man, if you fight the ocean you will drown!!!!"
by Kevin Rollengardner January 13, 2007
69 25
 
1.
acid n.
Acid is a ridiculously powerful drug. It's measured in micrograms (that's 10 to the negative 6, kids). A few hundred micrograms is enough for a fairly decent trip that'll last between 8-12 hours.
Guaranteed to blow your freakin' mind. I strongly suggest listening to the Grateful Dead while under the influence. It is not advisable to drive or operate heavy machinery while tripping. Going to work or attending class while zonked out of your gourd is also discouraged; the fact that your pupils will swallow your entire eye is a dead give away that you're on something.
I took a few doses of acid last night... and I'm still trippin' this morning =)
by Shaggy March 25, 2004
4469 880
 
2.
Having a Ph of less that 7.0
I tripped on acid. A bottle of muriatic acid was left on the floor and I tripped over, that is.
by DrMullet February 18, 2004
3001 1358
 
3.
acid-The wonderful gateway in your pocket to a world that is yours for the creating, whether it be talking frogs, stary faces on apple trees that just wont blink and you're sure that they know your name or maybe just the good old headmash that convinces you that you ARE, in fact, a carrot.
A truly marvellous man made hallucinogen that could, one day, replace calpol.
mate, MATE, MAAAATE? Shhh. hello? acid? aah. i see,
i appear to have eaten something bigger than my head.
by tommo September 03, 2005
2090 901
 
4.
The drug LSD. Lysergic acid diethylamide.
by VAKI5 August 17, 2003
1452 595
 
5.
slang for LSD, a hallucinogenic substance synthesized from Ergot, a fungus which grows on rye. There are no known adverse physical effects, however, it may cause psychological problems and/or flashbacks. It is commonly distributed in liquid form, geltabs, sugarcubes and blotter-paper.
We're going to trip tonight, my friend but a 10-strip of acid.
by Jeff July 13, 2003
873 426
 
6.
the gateway to transcendence and temporary enlightenment. chemical keys to the gates of heaven.
I wish my bathroom sink ran hot cold and acid.
by minghi May 06, 2003
820 392
 
7.
Acid , LSD is the most powerful psychadelic drug on the streets. It will make you experience things you have never thought would happen. As a comparison, some think it as a video game, but in a more broader sense it gives your mind a very trippy effect and you can begin to see trails, dots, inanimate objects doing human things. Boosts Creativity a lot.
Dude! I just got a 10 strip of acid man, Lets go drop the shit at my place tomorrow at seven..Bring Pink Floyd!
by Jeremy December 03, 2004
455 232