There's also several meanings of "box", such as:

• a package (as might be used to hold a gift)
• to punch each other for sport (as in boxing)
• a computer (in hobbyist or hacker usage)
• a quadrilateral shape (as in the game Dots and Boxes)

... and the various Urban Dictionary senses, too.

(Heck, if one of my partners talked about getting a box, it might mean a booster box of Magic cards.)