This essay is an examination of stupid knowing, an attempt to catalog a particular species of knowing, and to understand when, how, and why the label "stupid" gets applied to marginalized groups of knowers. Heldke examines the ways the defining processes work and the conditions that make them possible, by considering one group of people who get defined as stupid: rural people. In part, the author intends her identification and categorization of stupid knowing to support the work of theorists of resistance who have identified ways that those marginalized as stupid knowers use the cloak of their purported stupidity in the aid of their resistance. Heldke also hopes to add to the existing critique of the hierarchies of knowing an understanding of one particular way one form of knowledge is devalued: stupidification. Why are some forms of knowledge actually regarded as leaving one incapable of other forms of rational thought?