Superlative form of folksey; the most simple, unpretentious, and familiar in character.
Folksey + -est superlative suffix. Standard formation of the superlative degree for adjectives ending in -y.
Something described as 'the folksiest' might be charming or might be patronizing—the word itself doesn't tell you if the speaker means it affectionately or dismissively, which is why context matters so much.
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