Word parts muck + -y Pronunciation IPA (key): /ˈmʌki/ Audio (UK)(file) Adjective Positive mucky Comparative muckier Superlative muckiest (informal) If something is mucky, it is covered with dirt or muck. (informal) If something is mucky, it is obscene. Synonym: pornographicWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads