drown (one's) troubles
To blunt or avoid one's emotions by eating or drinking (often drinking alcohol). I had an awful day at work, so come down to the bar and join me while I drown my troubles. Let's drown our troubles in ice cream and forget about our awful test scores.
drown one's troublesand drown one's sorrows
Fig. to try to forget one's problems by drinking a lot of alcohol. Bill is in the bar, drowning his troubles. Jane is at home, drowning her sorrows.