Source : CEDICT

wine-lover's heart is not in the cup (idiom); a drinker not really interested in alcohol/having an ulterior motive/to have other things in mind/with an ax to grind/accomplishing something besides what one set out to do

Source : CEDICT

wine-lover's heart is not in the cup (idiom); a drinker not really interested in alcohol/having an ulterior motive/to have other things in mind/with an ax to grind/accomplishing something besides what one set out to do