Weißwurstäquator

From Freepedia

The Weißwurstäquator (literally: white sausage equator) is a humorous term describing an imaginary border running through Germany that divides the country into the Southern part in which Weißwurst is consumed and the Northern part, in which these sausages are neither eaten nor considered edible.

The Weißwurstäquator more or less coincides with the river Main and the isogloss that divides High German from Central German (see also German language, High German consonant shift and Benrath line).