Is it an orphan word?
Yes, it looks like it:
sjp.pwn.pl/doroszewski/zmuda;5532881.html
I didn't know that such word exists, I guess it isn't used anymore :)
Btw, guys, I'm not advocating for babies to be called "szmondaks" lol I meant that maybe Sdan's father calls his/her son like that, because he doesn't know what it means (if that word really is "szmondak", that is). It's just a theory though...