1. [adj]  capable of being guaranteed or certified; "a certifiable fact"
2. [adj]  fit to be certified as insane (and treated accordingly)

Certifiable
In these funny and twisted stories of American culture, David MdGimpsey answers questions which have long demanded answers: What does a teacher of Elvisology teach? What kind of animal is McDonald's Grimace? The sadness of life's adult rewards leads to comic relief in these short, topical, American asides.

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