01 Drink like a fish
鱼在水里生活，喝酒像鱼喝水一样，大家联想记忆一下，鱼有多能喝水，酗酒的人就多能喝，这样就很好记。Drink like a fish 就是形容一个人(习惯性地)饮酒过度、酗酒、豪饮。
My mother used to drink like a fish, but she is giving up drinking.
我妈妈过去经常喝酒很猛，但是她现在正在戒酒。
02 Hard-drinking
酗酒的;喝酒成瘾的;大量饮酒的
He dropped out of school and shacked up with a pair of hard-drinking buddies in that town.
他辍学了，喝一群酒柜住在那个小镇上。
03 high as a kite
字面意思：和风筝飞得一样高，但是它其实是喝醉了，喝高了的意思，(也能用来形容嗑药后的感觉)。
high 这个词除了用来形容高度之外，还能用来形容喝完酒、嗑完药之后那种很嗨的感觉
所以，大家还可以用 high as a kite 来表示某人喝多了。
It must have been a good dinner, Peter was as high as a kite when he got home.
那一定是个不错的晚宴，Peter 回家的时候酩酊大醉。