Colgate 360 Vibrate Deep Clean Battery Operated Electric Toothbrush Soft 2ct : Target Geographic tongue, also called benign migratory glossitis, is a harmless condition that makes the surface of your tongue look patchy, almost like a map. The exact cause isn't fully known, but genetics, Geographic tongue, also called benign migratory glossitis, is a harmless condition that makes the surface of your tongue look patchy, almost like a map. The exact cause isn't fully known, but genetics, What is a Tingling Tongue?