A say used by people who live on the East coast of America to express superiority over people from elsewhere in terms to time zones differences, cultural differences, weather differences, etc. This is because the East coast and EST timezone are the chads of geography and time.
Brit: " We'll begin a noon."
East coast guy 1: "*7am"
East coast guy 2: "East coast gang"
East coast guy 1: "East coast gang"