Don't worry, "Leegduutse" is fine, most speakers of standard Dutch don't know (exactly) what it means anyway.

I still have 1 more question though, you used "taeln" for "languages". I was wondering, could this be a Low Frankish (Nederfrankische) loan to your dialect? Low Saxon wikipedia seems to use only "Spraak/Spraken". 
 Tesi samanunga is edele unde scona