An English football club who have spent most of their years in the top tier of Englands highest division.
Derby fans are probably the most loyal fans in the country, because even during the bad times they sell out almost every single game and outsing opposition fans home and away.
Derbys local rivals are Nottingham Forest who play in League One and probably won't ever get out of it, however due to how shit they are, most Derby fans have forgotten about them. In fact you may struggle to find a Derby fan who can name a single Forest player...
"Have you ever heard of Derby County?"
"Yeah... we beat them but i've never experienced such passionate fans in my life"
"What about Nottingham Forest?"
"Sorry?... Is that joke?"
"Yeah might as well be!"