The phrase is tied to Matt Berry's performance as Laszlo Cravensworth in What We Do in the Shadows, the FX vampire comedy that premiered in 2019 and turned Berry's grand, old-fashioned delivery into a signature part of the character. Fans lifted short, quotable outbursts from the show for reaction videos and soundboards, where a single rude line can stand in for a whole argument. This one endures because it is instantly recognisable, easy to place at the end of a clip, and funny precisely because such a polite-sounding voice delivers such an impolite exit.