Austrians and Bavarians use it for Northern Germans. Preiss is Austrian dialect for Preusse (Prussian) and a Sau is a female pig.
Submit corrections to this slur
The Racial Slur Database, since 1999. Not copyrighted in any way, shape or form.
This database was created entirely from data gleaned off the 'net and via submissions from people like you and your parents. It's supposed to be funny and/or informational.