What is "migu"

Migu or miggo (translation: "since") (Hebrew: מיגו) is a Talmudic law concept relating to civil law disputes. A migu is a reason that a claim that would otherwise be rejected by a Jewish civil court should be accepted based on the fact that the litigant could have prevailed in the case based on a different claim were he disposed to lie. To be effective, the logic underlying the migu must be impeccable and there are a variety of cases in which the Migu argument is invalid.