A popular misconception by the 21st century kids that "rad" is short for "radical", whilst it can be, it is more popular with ex-hippies from the original counterculture of the sixties to stand for "rock and drugs", ergo, rad. Though, it can still be used in context as, "that party was really rad," but therefore implying that there was rock and drugs at the party.
L: What ever happen to just plain sex, drugs, n rock n roll?
B: I don't really know why they left the 's' out, I guess you could say rads.

by Missus Jackie Gleason May 12, 2008
A term used to describe a punk who doesn't restrict him or herself to one genre or another, though most likely has a certain preference. Describes one who is completely devoted to music; holding it and its ideals above all else. It is a state of such complete awesomeness that when someone achieves it, it will no longer matter to them.
Rad is for the kids whom Music=Life. See Hardcore Bandana
by Cubone of the Pokemon Mafia February 12, 2006
Rapid application development. Used to describe programming languages such as visual basic that speed up development time.
By the time I wrote a game engine in C++, the game was finished in Visual Basic.
Something that requires the use of skills, usually of a physical persuasion with some element of danger involved.

Also used to describe sexual intercourse or getting drunk.

"Hey man, do you want to go get rad on some steep hills?"
"Yeh, me and her got rad last night"
"Man, lets get rad tonight at the club"
by maxisrad August 16, 2007
A word that gained popular usage in the 1980s. It is an abbreviation or "radical," and is a synonym or cool and/or stellar. Synonymous with surf bums and teens who think they are still in the 1980s.
Surf bum: Duuude, I just got tubed in the most righteous wave today!
Valley girl with big blonde hair and spandex: Like, ohmygod, that is SO rad!
by Sir Joshizzle July 14, 2006
rad- short for radical, which meant cool, a term that is still used today by a populace of individuals that never really grew out of the 80's scene and still believe that other terms are cool such as "hey dude" or worse "dudette" and even "totally." Beware of these individuals for they are probably still sporting a Madonna or Micheal Jackson glove on one hand with the fingers cut out of it, watching movies such as Pretty in Pink or The Breakfast Club, and own a very colorful collection of wrist or ankle warmers.
Everyone laughed at her when Jane called Bob's new car rad.
by blueeyes811 May 05, 2006
Possibly the most over-used word in the hardcore/emo scene. Used as kudos towards someone/something.
"Hey, rad black jeans, maybe I should get a pair."
"The way you did your hair looks rad!"
by Heathxcore February 06, 2006

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