It refers to the “Calendrier de l’Avent Kinder & Co”, a Kinder-branded Advent calendar filled with assorted Kinder and Ferrero chocolates.

Meaning

• calendrier = French for “calendar,” here specifically an Advent calendar for counting down the days before Christmas.

• Kinder & Co = a mixed assortment of Kinder chocolates (e.g., Kinder Bueno, Kinder Maxi, Kinder Country) plus some Ferrero recipes such as Tronky and Hanuta Minis, packaged as a 24-day Advent calendar.

Product details

• Sold as a 24-door Advent calendar with a different small chocolate behind each date from 1–24 December.

• Typical compositions listed for “Calendrier de l’Avent Kinder & Co” include Kinder bars plus Ferrero specialties like Duplo, Hanuta Mini, Bueno Mini, and Tronky.