The phrase "more downer" refers to something that is even more depressing or sad than something else. It is spelled using the phonetic transcription /mɔr ˈdaʊnər/, which indicates that the "o" in "more" is pronounced as in "four," the "a" in "downer" is pronounced as in "cat," and the final "er" sound is pronounced as the schwa sound. It is important to spell words accurately to avoid confusion and ensure clear communication.