Generally speaking, copyright misrepresentation is the use of copyright law for
other than its intended purpose by making a claim of copyright infringement when
the claimant should reasonably know that there is in fact no copyright
infirngement or apparent affirmative defense, such as fair use.
The doctrine starts with Arista, was expanded upon by Diebold and Rossi, and
finally comes out with a reasonable outline in Lenz.