The author examines repeated in the texts of popular culture theme of monsters of varying shapes. She argues that their monstrosity is not about frightening appearance, but about the loss of form. The examples of monsters presented are involved in the same kind of monstrosity related to inability to control the chaotic matter by form. The author uses this definition of monstrosity and the concept of formlessness derived from Georges Bataille’s heterology to prove that monstrosity is not a feature or a motif, but an operation.