Borrowed from Turkish çüş (“whoa”).
tschüsch
- (immigrant or youth slang, regional) whoa; used to express amazement, disbelief, or sometimes contempt
- Synonyms: pff, oha
Wir haben zehn Kästen Bier für die Party gekauft. — Tschüsch... wer soll das denn alles trinken?!- We bought ten crates of beer for the party. — Whoa... who’s gonna drink all of that?
- This word is less associated with immigrant slang proper than many other expressions (such as lan or wallah), and is therefore slightly more likely to be heard from (younger) autochthone speakers.