Feckless Rube

The peak of ignorant dimwitted-ness, the cake taker for adult simpletonry. The feckless rube has nary a shred of understanding of how, when, or why they have grievously revealed their knowledge of the situation at hand to be rapidly approaching zero.

May also be used in playful adoration.

Kyle's such a feckless rube, his dad told him to take his car to get the oil changed and when the tech asked him what kind he wanted he responded with "uhhhh canola?"