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A Halldin or Hallden is a person that takes school very seriously, is afraid of doing something wrong or immature infront of adults. A Halldin is mentally unstable and oftenly takes jokes the wrong way. When a Halldin feels threatened or humiliated he/she takes to violence.
Ugh, stop hitting me! It was just a joke, you're such a Halldin!

You silly halldin! You won't get a D in physics just because you drew on the table!
by Wackattack April 02, 2012
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