Uncyclopedia is a wiki that parodies Wikipedia and other online encyclopedias. Its logo, a hollow "puzzle potato", parodies Wikipedia's puzzle globe logo, and it styles itself as "the content-free encyclopedia", parodying Wikipedia's slogan of "the free encyclopedia" and likely as a play on the fact that Wikipedia is described as a "free-content" encyclopedia. Uncyclopedia's name is a portmanteau of the prefix un- and the word encyclopedia.