cankersaurus rex

Similar to a canker or a canker sore, a cankersaurus rex is incredibly painful and occurs in the most inconvenient areas of one's mouth.

I woke up this morning with a wicked canker sore on the tip of my tongue... but I accidentally chomped it midway through a delicious bite of Oreo O's. Now it's definitely a cankersaurus rex. Brutal.

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