"Smacky eater" is a term used to describe a person who eats loudly and sloppily. The spelling of this word can be explained using the International Phonetic Alphabet (IPA) as /smæki itər/. The first syllable "smack" is pronounced as /smæk/ with a short "a" sound and a hard "k" sound. The second syllable "y" is pronounced as /i/ with a long "e" sound. The last syllable "eater" is pronounced as /itər/ with a short "i" sound and a soft "t" sound. Together, they create the word "smacky eater".