showing the approval of something said by a group member

1. Blue Monday is the most depressing day of the year, calculated by Dr. Cliff Arnall, a researcher at the University of Cardiff's Center for Lifelong Learning.
Factors used to calculate the date included weather conditions, debt level, time since Christmas, time since failing our New Year's resolutions, low motivation and feeling the need to take action.

In 2005 the date was calculated as January 24th, in 2006 it was January 23rd, and in 2007 it was January 22nd.

2. A song by the hard rock band Orgy from their album Candy Ass.

A phrase started by the 11th notationally ranked boys soccer team at Stadium High School meaning to approve of something. Also used in response to a question or phrase of comedic nature. Also used in pairing with "Whats Good Though".

A phrase made toward people saying / doing great things,educational, Inspirational factual and or saying things to influence others in a positive way instead of saying Amen after the pastors ceremon the people said Say Dat!