Ma'anar ƙamus na "Blue Devil" ya bambanta dangane da mahallin. Ga ‘yan ma’anoni kaɗan: Wani nau'in kifi: Shaidanun shuɗi shine sunan gama gari ga nau'ikan kifaye da yawa, gami da shuɗin shaiɗan damselfish da shuɗin shedan mala'ika. Abin sha mai maye: Shaidan blue shine hadaddiyar giyar da aka yi da gin, blue curacao, da ruwan lemun tsami. Tawagar wasanni ko mascot: Shaidanun shudi ne na gama-gari ga kungiyoyin wasanni, musamman a Amurka. Misali, kungiyoyin wasanni na Jami’ar Duke ana kiransu da Blue Devils. . Jin ɓacin rai ko ɓacin rai: Za a iya amfani da shaiɗan shuɗi a misalta don kwatanta jin bacin rai ko damuwa. Alal misali, wani yana iya cewa yana jin shuɗi ko kuma yana da shuɗi, wanda ana iya fassara shi da cewa yana jin kamar shaiɗan shuɗi ne ya ruɗe shi.