It is a phonetic adaptation of the German phrase "wie heißt er?" (literally: "what is his name?").
It typically refers to a mechanical part, a gadget, or a "jigamaree" used to fix something. Potential Origins of the File
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Borrowed from German wie heißt er? (“What's it called?”). Wiktionary, the free dictionary Top 7 German words commonly used in Poland – Education