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A sometimes painful tongue inflammation condition where patches of the tongue become red or white and the whole surface resembles a map. There is no known cure. Also known as benign migratory glossitis.

Many people get a mild geographic tongue from eating pineapple.
Damn! My tongue hurts. I knew I shouldn't have eaten that pineapple! Now I've got geographic tongue again.
by Fredgirl77 December 11, 2010
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