English version

curl of somebody’s lip/mouth

From Longman Dictionary of Contemporary Englishcurl of somebody’s lip/mouthcurl of somebody’s lip/mouthDISAPPROVEa sideways and upwards movement of your lip or mouth, showing that you disapprove of someone or something curl
Examples from the Corpus
curl of somebody’s lip/mouthDavid had always treated them with a superior curl of the lip.
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