four sheets in the wind就是酩酊大醉，醉得不省人事。

【例句】
After only three beers, Gary was four sheets in the wind.
三杯啤酒下肚，加里便醉得不省人事了。

The man who passed down the street was four sheets in the wind.
街上走过的那个人已是酩酊大醉。