abbreviation of radiator.
the rad isn't working! i'm fecking freezing.
by kellykellyrob April 14, 2007
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
Abbreviation for Really Awesome Dudes. Used in the context "Hey man, you're rad," it is also an organzation of strapping men from Pine Plains, NY. Who are Really Awesome. Dude.
Hey bro, you're so RAD. You are a really awesome dude.
by Dee Dubbya August 07, 2008
Possibly the gayest word ever spoken in the hippie language, Retarded, stupid and completely over used in the pot head community.
Dude: Yo, man that was a totally rad party last night.
Person: Your face!!!!!!!
Dude: What ever man your not rad.
Person: Kill yourself!
by ZetsuTheForbidden September 12, 2009
Benchwarmers of Residence Life Staff. They lie in wait until an active Residence Assistant quits or leaves for other reasons, and then take on that role. They are given all of the training of a full RA and must live in Residence even though they serve no functional purpose.
"Say, aren't you a RAD? Why did you accept the position?"
"I have no idea. Please end my suffering."
by Mattzorz February 28, 2007
A word that can be replaced with cool or awesome. Generally meaning that something is good.
Rad is the most annoying word ever to have been created.
by Abby Scholtendey August 08, 2005
A word used by complete pink shirt wearing faghatsto sound cooler
scientific fact: 90% of toolbags say rad.
by The~Intellectual~Me September 24, 2008

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