Originally meaning the hallucinogenic drug LSD. Active in micrograms (ug). A very powerful psychedelic drug. The typical dosage of LSD in one "Hit" is between 50 and 150 ug. Appropriate doses are generally viewed to be 1ug per 1kg of body weight.

LSD builds extreme tolerance quickly. Use must be spaced out by at least three days for the tolerance to go down enough to trip again, any sooner and there will be little to no effect. There is a cross-tolerance to Psilocybin, the chemical found in hallucinogenic mushrooms.

LSD was originally synthesized in 1938 by Albert Hofmann. It was not discovered to be a hallucinogen until April 16, 1943 after Albert Hofmann accidentally ingested a small amount. LSD did not appear on the streets until 1963. Before then, the experiences of LSD were restricted to chemists who could synthesize it from Ergot alkaloids derived from the rye Ergot fungus.

It was federally banned in the US in 1967, simply because the government was afraid of the alternative thought methods and "enlightenment" it created, believing it would incite rebellion among the general public. It is one of the safest drugs, legal or illegal, known to man. It is safer than aspirin or advil. So-called flashbacks are simply the result of post-traumatic stress disorder, and can happen without LSD use, mostly in wartime veterans.

The chemical name is d-Lysergic Acid Diethylamide. The term LSD is an acronym for the German name, Lyserg-Saeure-Diaethylamid.

Many people in modern days have begun using the word Purple Haze in reference to certain strains of cannabis. This is a misnomer, in reference to the original definition as stated above.
Dude! That purple haze was so fuckin strong, I was trippin balls all night!

Shit man, the walls are breathing!
by Interstellar Overdrive May 16, 2005
Top Definition
A strong strain of mostly-sativa cannabis. JUST cannabis, NOT laced with anything. Lacing a smokable drug with LSD is IMPOSSIBLE and a bullshit urban legend! It will break down if you try to smoke it!
"Man, that purple haze I bought from Jim was amazing, it got me so fucked up!"
by JM May 03, 2003
Weed with purple hairs/leaves. Really good high. Peaceful high, different than most.
I was so excited to get some purple haze, i forgot to dump the body in the river.
by MichaeldAmmer July 30, 2004
A kick ass weed and also a bad ass Jimi Hendrix song
Let's get some purple haze and find out what the meaning to Jimi hendrix songs are
by Idol March 10, 2004
weed with purple hairs that will get you a cleaner high than other weed. by the way, the last entry has 4 ups and 20 downs, perfect for purple haze
I'm buying purple haze tomorrow, and I will get high
by James the Ripper May 11, 2006
a very strong sativa strain of marijuana that affects mind more than body
by Anonymous October 03, 2003
a type of marijuana with strong potency.
The man purchased some Purple Haze from the drug dealer.
by Francis November 25, 2002
some sick weed. Its got some purple tone to it. Its doesnt have anything added to it, but some people call pcp purple because u get messed up pretty good, but its not. Pretty expensive, and again there is nothing in the real purple, i smoke that shit everday. Also called piff (that FIYAH). Check the example for that pb j an shittt
my nigga sheist got me pifft out my brain rite now, that purple thats wat it is, yea, yea brazi i see u ova there too, that peanut butter jelly no bread u already kno, holla atcha boy
by Hi-JiNx January 22, 2005
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