From Wiktionary, the free dictionary
Unknown, early 17th century’s student language.
Schmaus m (strong, genitive Schmauses, plural Schmäuse)
- (dated or humorous) feast of food
Declension of Schmaus [masculine, strong]
- “Schmaus” in Digitales Wörterbuch der deutschen Sprache
- “Schmaus” in Duden online