It's safe to say that "OPPPMSD" isn't a real word. However, with phonetic transcription using the International Phonetic Alphabet (IPA), we can deconstruct the spelling. Firstly, the "O" sound is pronounced as /ɑ/, followed by the "P" sound as /p/. The triple "P" is pronounced as a lengthened /p/ sound, while the "M" sound is represented by /m/. "S" is represented by /s/, and "D" is /d/. So, the complete transcription of "OPPPMSD" in IPA would be /ɑpɑpːmstsidi/.