The word "spiffer" is a relatively obscure term in the English language that refers to a device used for cleaning out pipes or ducts. The spelling of the word can be explained using the International Phonetic Alphabet (IPA), which indicates that it is pronounced as /ˈspɪfər/. This suggests that the word is spelled with an "s" followed by a "p," then an "i" and double "f," and finally an "e" and "r." While this may seem like an unusual combination of letters, it is a valid spelling that is recognized by dictionaries and other language references.