n: usually a male, often a football player, who wears short sleeves in freezing weather
(Note: Neither of the wild card teams who played January 5, 2014, with wind chill readings of minus 4 degrees, advanced to participate in Super Bowl XLVIII, which by pure luck is forecast to be clear with above-freezing temps. Colin Kaepernick commented, “I’m a little hardheaded at times.”)
Source: http://edition.cnn.com/2014/01/06/sport/green-bay-nfl-cold-american-football/