The correct spelling of the phrase "more crashed" is /mɔːr kræʃt/. The '-ed' suffix has been added to the irregular verb 'crash' to indicate past tense, while 'more' acts as an adverb describing the intensity of the crash. The 'r' in 'more' is silent, making the vowel before it 'o' a long vowel sound. The 'a' in 'crashed' has a short sound because of the letter 'c' before it, and the 'd' at the end is pronounced as a voiced consonant.