The phrase "most back slapping" is spelled with the phonemes /məʊst/ for "most", /bæk/ for "back", and /slæpɪŋ/ for "slapping". The first syllable in "most" is pronounced with the long "o" sound and the second syllable with a schwa sound. "Back" is pronounced with a short "a" sound and the "ck" is pronounced as /k/. "Slapping" is pronounced with a short "a" sound followed by "p" and "ɪŋ". This phrase is often used to describe excessive praise or admiration.