One of the most popular sleeping positions when traveling. The head is tilted to a side resting on a window, seat belt, pillow, etc. Resembles a position you would make with your head when eating a taco. Results in neck pain and a really shitty nap.
That overnight bus to Phoenix killed me. I had taco neck the whole time.
by david10 March 15, 2007
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A sprained neck that hurts real bad like.
I couldn't come to school because i had taco neck
by Wigglybean May 16, 2006
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When your eating a girl out, who has giant mud flaps, her beef curtains fall down around your neck. This forms a taco neck.
Man Igot taco necked last night.
by Chamby86 May 5, 2008
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A permenent crook in the neck (usually tending to stick at a 45 degree angle to the left or right) due to the over-eating abuse of hardshells tacos. The unnaturual exertions placed on the neck due to the "crunchy taco eating bend" develop into taco neck syndrome.

Reports have shown that cases of taco neck syndrome have been developing more and more frequently in instances of use with Taco Bell's new crunch wrap supreme, as well.
Shaquille O'Neal exhibits acute taco neck syndrome in his free throw shooting.
by Matt Ramamama July 2, 2006
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Eating mass amounts of mexican tacos with extra hot sauce. Holding it in all day until you return to your residence and shit all over your poor girlfriend's neck.
Dawn loved the Morroco Neck Taco so much that she propmtly requested for another.
by Dutch Oven 83 January 11, 2007
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