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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A substance often found on sugar cubes or tiny pieces of paper. Less commonly found on sour patch kids, or starburst. When taken orally, effects are generally produced within 60 minutes and can last up to 14 hours. A wonderful experience, but fucking brutal on the body and mind for days afterwords. If dosing hard, expect after effects for up to 7 days, and expect your back and neck to feel like fucking shit for a while also. A serious drug not to be taken lightheartedly. Acid will take you deep to the core of it. yeah. Don't listen to the fucking hippies who are like "dude i like tripped out so hard and watched this building breathe dude, I love acid" those people don't even know what the fuck they are doing to themselves. Its more like "wow I am so lucky to even be drinking this fucking glass of water, acid made me realize how small and insignificant I am to the cosmos, but yet made me appreciate love and life so much more, I'm going to call my mom and tell her I love her right now...' Can be a painful, awkward, and brutal experience, Usually tho it is worth it.
Lily took acid yesterday for the first time and realized that her entire conception of herself was a bunch of bullshit, and that she was a mean girl, and had her world fucking shattered, but it was a ton of fun in the process and now she is a better person for it.
by acidtripper November 20, 2011

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A substance which has a high concentration of positively-charged hydrogen ions.
Vinegar is a weak acid.
by Polychromophilia December 09, 2004

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makes u see the world better
a man on acid sees the word better
by mikes man May 17, 2007

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a drug which jesus gave away for free, the church wanted a monopoly on the drugs so they killed him.
acid is good to take before lectures.
I had to put my friend in hospital on a bad trip.
by james kirk March 16, 2006

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1. adj. A way of being which is negative and/or hurtful.
Jenny: Your shoes suck, Jimmy!
Jimmy: Yo Jenny, why you gotta be so acid?
by JohnnyHotcakes99 May 27, 2016

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In computer science, ACID (Atomicity, Consistency, Isolation, Durability) is a set of properties of database transactions. In the context of databases, a sequence of database operations that satisfies the ACID properties and, thus, can be perceived as single logical operation on the data is called a transaction.

It's also slang for LSD, apparently.
That database is not ACID, but this may not be a bad thing, if you understand the trade-offs.
by DefinrOfWords February 13, 2017

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a hell of a drug
John: Acid is a hell of a drug.
Jack: ye.
by mfbails January 29, 2010

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