Smutching is a verb that means to smirch or soil a surface with dirt, grease or other impurities. It is pronounced as /smʌtʃɪŋ/, with stress on the first syllable. The IPA notation represents the phonetic sounds of the word, starting with the "s" sound, followed by the "m" sound and a short "u" sound. The "t" and "ch" consonants are pronounced separately, with a short "i" sound in between. The final "ng" sound is nasalized, with no vocal cord vibration.