This is the 8804th most frequent German word.
käse
Cheese.
The word 'Käse' is used idiomatically here to mean 'nonsense' or 'pointless talk'.
Das ist alles nur Käse, glaub mir nicht!
That is all nonsense, don't believe it!
The term 'Käse' here is used in its literal sense referring to a dairy product.
Der Käse, den wir gestern gekauft haben, war sehr lecker.
The cheese we bought yesterday was very tasty.
The word 'Käse' refers to the food product made from milk that is commonly used as a spread or topping.