First off the Fighting Frogs of Pratt are an original mascot, no one else has the same mascot in the enitre US-so leave em be (PHS Class of 94). The term Greenbacks comes from an old football coach and the practice uniform,it is a long and complicated story, but know that people from Pratt get very angry when you bag on their macot!
Also according to David Letterman the #1 worst High School Mascot is the Ft. Collins Colo. Lambkins..yes a baby lamb is their mascot. A friend of mine wrestled at FT. Collion High and said the wrestling mascot is the balcksheep but come on a baby lamb!
As the saying goes around Pratt "Once a Greenback, always a Greenback!"
Coach Brown