Carls ‧ berg /ˈkɑːlzbɜːɡ $ ˈkɑːrlzbɜːrɡ/ BrE AmE trademark
a type of ↑ lager (=light-coloured beer) popular in the UK, and known especially for being advertised as being ‘probably the best lager in the world’. People sometimes use these words humorously, changing them slightly, when they are talking about other subjects.