Korneistee
A good tasting alcoholic drink. Usually found in 10 liter Kornister and consumed in large amounts. Having a "Ausländer" at the party and serving him "Korneistee" will make him very happy and nauseous. If given too much the "Ausländer" will start vomiting thus protecting others from Covid-19 by making them leave the room.
Stop giving the "Ausländer" that Korneistee.