crème de menthe Syllabification: (crème de menthe)Pronunciation: /ˌkrēm də ˈmenTH ˌkrēm, ˈmint/Definition of crème de menthe noun a peppermint-flavored liqueur. Origin: early 20th century: French, literally 'cream of mint'crème de menthe in other Oxford dictionaries Definition of crème de menthe in the British & World English dictionary