An adjective used to describe any person, place, activity involving abnormal unique behavior, dress, action. The opposite of basic.

Refined.
"Did you see that girl just walk by? She looked acidic as fuck."

"No dude, Sofia is different, she's acidic."
by LostBoy January 25, 2014
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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
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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 3, 2005
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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 6, 2003
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A term that can be used alongside a person, place or thing to describe a particular event or situation that is very similar though highly exaggerated.
"I went to see that comedy show the other night. The guy was like Jim Carrey on acid."

"That disco was like the 80s on acid."
by Tomius J. Barnard July 10, 2006
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The drug LSD-25. A gift from the gods which turns your brain inside out so that the innermost contents of your mind leak bizarrely into the world around you. An acid trip is a lot like an elaborate, extended waking dream which can sometimes turn into a nightmare without warning. Tripping on LSD is not about rainbow colors and being chased by flying pink elephants; it is a total elimination of preconceptions about the world and a profound distortion of reality which many casual users find too intense. Acid is extremely potent: a tiny dose of this drug can cause a life-altering experience. Depending on the dosage, you might expect things like getting lost in the curtains, seeing swarms of insects in the walls, or experiencing days between each minute of the clock.
Many people are not aware that the rivers in the biblical garden of Eden actually ran with acid and liquid ecstasy, and were bordered by shady groves of marijuana and fields of opium poppies growing in a soil of one hundred percent pure DXM.
by morning star March 24, 2008
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An extreme hallucigent. Effects depend on user's mood, disposition, enviroment, drug dose, etc.Drug does is called hits User may feel a slight "body buzz" shortly after injestion. After some time, user will experiance visual and auditory hallucinations. These hallucinations will either be extremely pleasent or frightening depending on user's mood, dose, and/or enviroment. Colors may seem brighter and more prevalent than usual, and sometimes, with higher doses, have "sounds". Users may hear sounds that arent there and the sounds they do hear may be somewhat distorted.Lines seem to be sharper and more prevalent, as if outlined with a black magic marker.Users may also see the impossible such as wrinkles upon wrinkles Bad trips may be extremely terrifing if the user is inexperianced and does not know what is happening. On a bad trip, a user may think that he is gone insane ,lost grip on reality, and will never know normalcy again. User's idea of self may be proundly affected, such as believing that he has become an amoeba, a fruit, or has become nothing at all. Bad trips can happen to all users, but experianced users may be able to cope with a bad trip because user understands effects of the drug. They know to talk to a friend, change their enviroment,not to be alone, and not to resist the drug. Resisting only makes things worse, especially if user is alone.
Acid will chage your life perspective, hopefully for the good, sometimes for the bad.
I had several good trips and one bad trip. But I still love acid.
by acidman July 14, 2006
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