“passed out (from drinking)”
The combination here is “vín” (wine/alcohol) and “dauður” (dead). Death by wine.
There is a popular alcoholic drink in Iceland called Brennivín, which is a clear unsweetened schnapps. You’ll usually hear of Brennivín accompanying Iceland’s signature hákarl, or fermented shark. The drink is called the “black death” but when you translate the word, you get “brenna” (burning) and “vín” (wine). So if you’re passed out from Brennivín, you might as well be considered dead due to burning wine.