expression, ichidan verb
to get drunk and lose control; to be overcome by alcohol
Idiomatic expression meaning to drink so much that one loses self-control or behaves badly. The passive form of 飲む (to drink) implies being 'consumed' by alcohol.
彼は酒に飲まれて、上司に暴言を吐いた。
He got drunk and lost control, and hurled abuse at his boss.
酒に飲まれないように気をつけてください。
Please be careful not to let the drink get the better of you.