The spelling of the word "Phallu" can be somewhat confusing as it's not a commonly used word in modern English. Depending on dialect, the word may be pronounced differently, but the most common pronunciation is /ˈfælu/. The IPA phonetic transcription helps explain the spelling of the word as it breaks down the sounds of each letter. The "Ph" is pronounced as an /f/ sound, and the "a" is pronounced as a short /æ/. The double "l" represents a longer /l/ sound, and the "u" is pronounced as a short /u/.