Which team's defense was known as the "Doomsday Defense"?

Which team's 1960s defensive line was called the "Fearsome Foursome"? Which team's early-1970s defense was known as the "No-Name Defense"? Which team's 1980s offensive line was nicknamed "The Hogs"? Which team's high-scoring offense around 2000 was called "The Greatest Show on Turf"? Fans of which team are known as "Cheeseheads"? Which team's end-zone bleacher section is called the "Dawg Pound"? Which team's rowdy fan section is known as "The Black Hole"? Fans of which team call themselves "Bills Mafia"?