doosblanks
The term "doosblanks" is a colloquial and somewhat vulgar Dutch slang term. It is used to refer to empty containers, particularly those that have been consumed or emptied of their contents. The word is a compound of "doos" meaning box or container, and "blanks" which is a loanword from English, implying emptiness or a lack of substance.
While it can be applied to any empty receptacle, it is most commonly associated with empty beverage
The usage of "doosblanks" is primarily oral and prevalent in informal social settings among Dutch speakers.