The document discusses the history and characteristics of Lolcats, an early internet meme format using image macros combining pictures of cats with text typed in a playful imitation of cat speech. The key features of Lolspeak used to caption the images are outlined, including misusing verbs and grammar, dropping articles, using younger vocabulary, and rearranging syntax. Various sub-memes that spread and parodied the original Lolcat format are also mentioned.