Kielbasa, that is, in (many of) its tubular forms “Nie dla psa kiełbasa,” is a sardonic thing you can say in Polish when something is (or should be) unattainable for someone who desires it. It means “the sausage is not for dogs.”…

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Source: https://www.chicagoreader.com/chicago/guide-to-polish-sausage-kielbasa/Content?oid=69691272