Eine Extrawurst verlangen

Literally: To demand an extra sausage

Example: “Jeder wartet in der Schlange, aber er verlangt eine Extrawurst.” — Everyone else waits in line, but he expects special treatment.

Origin: Extra here means separate, beyond the ordinary, and the extra sausage stands, as a part for the whole, for any special favor: someone who wants one wants to be treated differently from everyone else. The fuller form is jemandem eine Extrawurst braten, to fry someone an extra sausage. In Austria Extrawurst is also the name of a particular kind of cold cut.