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TED-hed -- noun
A TEDhead person who is an enthusiast of the multidisciplinary lecture series hosted by the nonprofit TED Conferences, LLC ("TED" being short for "Technology, Education, Design"). Taken to extremes, this enthusiasm can lead to someone becoming more than a simple fan or academic, exhibiting some of the negative qualities of a snob, cultist, or otaku.
I watched three lectures before breakfast - one on spider silk genetics, one on using video games to teach, and one on OLPC. I've become a TEDhead!

You can't even talk to Sharon anymore; she's become such a damned TEDhead. She cornered me in the break room and talked to me about micro-financing in the Third World or some shit for FIFTEEN MINUTES!
TEDhead by salvagebar December 15, 2011

tea head 

Teahead is British slang for a habitual user of cannabis.
Pass the puffer, you tea-head.
tea head by j. zerusi January 15, 2005
some one who love's techno more than any other genre of music
tekhead : wanna come to defqon 1 next year

random guy : whats that

tekhead : massive rave

random guy : dude your a tekhead, listen 2 a decent genre

tekhead : hardcore for life man
tekhead by a tekhead September 24, 2009
He's like tearhead kind of badass
tearhead by warfblue October 11, 2010
A combination of Teabagger and Jihadist, a Teahadist is a domestic terrorist masquerading as a "patriot" in the US. The Teabagger feels that the only way to uphold truth, justice and the Constitution is to violently attack and threaten those who happen to disagree with said Teabagger's views. Phrases such as "defend the Constitution", and "The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants" are often heard from Teahadists, although how much they actually understand what those mean is in debate.
It's only a matter of time before one of those Teahadists drives a truck bomb into a federal building, just like Timothy McVeigh.
teahadist by IHKumicho March 25, 2010

teahadists 

Since the passage of health care reform some members of Tea Party groups have taken to attacks, vandalism, incendiary slurs, threats of violence, brandishing of weapons and calls for revolution and death to elected officials and members of the public that support the bill.

Sarah Palin, Glenn Beck and other teabaggers have started using gun and killing metaphors and claim that the potential victims are bringing the attacks on themselves.

This branch of the teabagger groups are known as teahadists.
The teahadists are really going off the deep end, there was one on FOX News saying Nancy Pelosi may get assassinated then he threatened a 'thousand little Waco's' because he was upset that sick children now have health insurance.
teahadists by Knot O'Really March 26, 2010