The greeting comes from Matt Berry's portrayal of Laszlo Cravensworth in What We Do in the Shadows, the FX comedy series that began in 2019 and follows a household of vampires living in modern Staten Island. Laszlo is known for his theatrical manner, elaborate diction and delight in ceremony, and this formal address captures that character perfectly. Clipped and shared as a soundboard favourite, it has become shorthand online for treating an everyday moment as a grand occasion, which keeps it useful long after viewers first hear it in the show.