Even Greener Pastures

Polish light swearing is also "kurde" - means nothing, at least shouldn't be offending to Kurdish people if any around. Of course "kurczę pieczone" (obviously pronounced with "e" instead of "ę") is great, but you can sometimes hear "kurczę blade" (pale chicken).
"Krucyfiks" exists in Polish, but not as a swear word. But in some dialects (like in Silesian) it may be - "krucafuks".
The jail reminds me that when my wife asked our neighbour's son where his older brother was recently - he answered "w sanatorium" (everybody knew he was arrested).

Another related question is - do people in your countries use swear words from other languages than their own?
In Poland we may often hear: "f..k",  "Scheiße", or Russian version of 'Go away!' - "Пошёл вон!" (Polish spelling: "Paszoł won!").