The Dutch-named Woggen Froggen is a creature of the divine frog variation that is unique to the Northwest Chicago suburb of Lake Zurich. Some residents have theorized that the creature arose as the result of a frog breeding with hard radium and other nuclear material including general misery, along with alcohol residue in empty bottles thrown in the town's lake by residents in the late 1920s. The latter is the reason, aside from the name of "Woggen Froggen", this species has also been referred to as the "Prohibition Frog". The name "Woggen Froggen" comes from the Lake Zurichian Dutch phrase meaning "Wonky Frog", which derives from the fact that the frog is noticeably wonky in its movements, before the term "wonky" carried positive connotations in the English language.