loosen somebody’s tongue
From Longman Dictionary of Contemporary Englishloosen somebody’s tongueloosen somebody’s tongueTALK TO somebodyto make someone talk more than usual, especially about things they should not talk about → loosenExamples from the Corpusloosen somebody’s tongue• The wine loosened his tongue.loosen somebody’s tongueloosen somebody’s tongueinformalTALK TO somebody if something such as alcohol loosens your tongue, it makes you talk a lot The wine had certainly loosened her tongue. → tongue