quaffs
v. <文>痛饮( quaff的第三人称单数 ); 畅饮; 大口大口将…喝干; 一饮而尽
If you quaff an alcoholic drink, you drink a lot of it in a short time.
He's quaffed many a glass of champagne in his time.
他年轻时曾经开怀畅饮过不少香槟美酒。