Top Definition
or known as "acid culture;" this culture is a large collective group of people who strongly believe in the divinity of hallucinogenic drugs and their powers to open up the mind to a greater understanding. those involved with syd culture can be distinguished by psychedelic clothes, eccentric views of life and personalities. those involved with sydculture are often called "syd," "acidhead," "batteryhead," or "hippie"

the name "syd" was derived from syd barret who was an avid user of LSD.
man, that kids so wacked you'd think he was part of that fucked sydculture bullshit

whoa dude that kids such an individual; i bet they're a syd.
by charsara June 06, 2007

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