Dudy* (plurale tantum)
NEITHER a bagpipe term, NOR related to any of the other instruments treated in this survey
NOT a bagpipe, but an old Polish synonym of "płuca" [lungs]; Sometimes used as a designation for animal organs used in food, such as the heart, liver, tripe, and guts [i.e. "offal" (which is a collective noun) or "innards"; ws] as well; The term is used in several proverbs and expressions, and therefore easily misinterpreted as "a bagpipe".
Sobiescy, Jadwiga [Pietruszyńska] & Marian: Polska muzyka ludowa i jej problemy [Polish folk music and its problems]. Wybór prac pod redakcją Ludwika Bielawskiego [A selection of their works edited by Ludwik Bielawski]. Warszawa, 1973, p.85.
Kubik, Józef: Przysłowia i wyrażenia przysłowiowe o instrumentach dętych (Proverbs and proverbial expressions about wind instruments). In: Polskie instrumenty ludowe… (1981), p.128 (»Krzyżanowski/Adalberg, I;502).
Słownik warszawski (1), I, p.579 (➺ Duda 6).