The spelling of "Squamduck" can be confusing but it can be explained through IPA phonetic transcription. The word is pronounced /skwɒmdʌk/ with an initial "skw" consonant cluster followed by a short "o" sound and a "d" and "k" consonant cluster at the end. The spelling of "Squamduck" seems like it should contain an "a" after the "m" but the pronunciation is not affected. It is important to note that this word is not commonly used and may be specific to a certain region or language.