Since Seattleites live for gloriously sunny weather, this phrase typically is used to emphasize just HOW nice the weather was on any given day. It refers to clear blue skies--so clear, in fact, that you can see Mt. Rainer. Example: "Wasn't the weather amazing yesterday? The mountain was even out!".
The nickname for the Brookland neighborhood due to its Catholic heritage.
The Dirty Bird is a celebratory dance popularized by ex-Atlanta Falcons star Jamal Anderson. Anderson, who was known for his colorful antics on and off the field (much like Muhammad Ali, whom he knew as a child), would execute this goofy dance in the end zone after touchdowns.
The "Dirty Birds", when plural, can refer to the Atlanta Falcons football team and its players.
A quintessential Rhode Island treat, made with milk and coffee syrup. Believe it or not, coffee milk is in fact the official state beverage.