I think most people will interpret this as an untranslatable German insult without worrying about what exactly the insult is. If you want people to get that the insult is due to the informal choice of words, you could say something like "her insulting informality" or "her insultingly informal language" and leave it at that.
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chiming
no subject
Date: 2011-06-15 09:03 pm (UTC)From: