cardboard box

Short definition from Wiktionary

Noun

1. 1
   An industrially prefabricated box made from cardboard, primarily used for packaging goods or materials and often recycled.
2. 2
   A corrugated box.
3. 3
   Syphilis.
4. 4
   Someone who is very dull and uninteresting.
5. 5
   Alternative form of cardboard box.