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When someone gets so high that every time they exhale smoke they pretend that they are a dragon breathing fire at tiny imaginary people.

This usually occurs while smoking weed, although shrooms and cigarettes have been known to produce some of the most ferocious dragons ever encountered.
Friend 1: "Dude, Mat hit too many bowls and now he's dragon high."
Friend 2: "Those poor imaginary people..."
by Demonchipmunk October 18, 2010
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