A quintet is a group of five people commonly associated with musical groups, such as a string quintet or a group of singers. http://en.wikipedia.org/wiki/Quintet.
For the screw head shape, see Cheese head (screw). Cheesehead (Dutch: kaaskop) is a nickname which began as a slanderous term towards Dutch people, and later in the US became a general name for a person from Wisconsin (see: Wisconsin cheese). It is also the nickname for the fans of the Green Bay Packers NFL football franchise. 1 Origins 1.1 Wisconsin.
Green Bay is the NFL's smallest market with a metro population of 306,241, which is easily surpassed by the Packers' backers on both Facebook (4.4 million) and Twitter (701,000). And, of course, it doesn't hurt that the Packers are the only game in town and have an NFL-record 13 championships to their credit. The study said Packers fans scored the highest marks in every category except for TV rankings (second) and merchandise (seventh).