Language /
Harmless old-fashioned Polish swear words/phrases [159]
There is "Pieronie" or "Pierunie" (literally meaning something along the lines of "You lightning") used in regional dialects, it could mean anything though, something like "You dog!" - you could use it to offend or to approve, paise. You could pretty much use it instead of "Wow" too. You can sometimes hear it used with some other words, like "Pieruńskie szczęście" - meaning great luck.
My uncle often used something I'd call a "gem of a phrase" - although it probably is still used in Silesia or Kaszuby regions (I'm not quite sure of how to write it, but here it goes) - "Nasermater" - which also could mean a lot. It can be used identically as "Cholera" - so, just a short "Damn!". It could be used in a phrase "On wszystko robi nasermater." ("He does everything poorly/carelessly"). I'd risk an assumption that most poles not only wouldn't be offended by the word, but also would have no idea what it means. :P But some, I'd guess at Kaszuby region, could actually regard it as a strong curse, since "sermater" means (I think!) "devil" or "evil spirit" there. So it'd be "Na sermater" then. ;)
