Marengo

A term which originated in Sierra Leon to describe the third member. The term was carried to America in colonial times and is treat as slang in African-American communities, specifically in the South Eastern U.S.

teacher: Rodney has been sitting with his legs crossed all day.

Teacher 2: Poor Rodney, he is probably dealing with an uncontrollable marengo.

Ex: She fine and my marengo knows it