Literally translated from German meaning Straw Widow it is a widely used expression to describe a person whose partner has gone away for a few days. Looking at origins, there was a similar expression used in England as early as 1824 and namely “Grass Widower”. Straw widow appears to be associated with early mattresses which were made of straw.
Somehow it makes sense to me.
Anyway, I am a “Strohwitwer” for the next few days