Originally proposed as Juice, this emoji can be used to talk about juice or other liquids that come in boxes with straws. It can also be used metaphorically to talk about power, energy, respect, or an elusive quality that makes someone special.
Beverage Box was approved as part of Unicode 12.0 in 2019 and added to Emoji 12.0 in 2019.
U+1F9C3
? Beverage box