High Quality Content by WIKIPEDIA articles! In law, frivolous litigation is the practice of starting or carrying on law suits that, due to their lack of legal merit, have little to no chance of being won. The term does not include cases that may be lost due to other matters not related to legal merit. While colloquially, a person may term a law suit to be frivolous if he or she personally finds a claim to be absurd, in legal usage "frivolous litigation" consists of a claim or defense that is presented where the party (or the party`s legal counsel) had reason to know that the claim or defense was manifestly insufficient or futile. The fact that a claim is lost does not imply that it was frivolous.