Mummitrollet is the Norwegian name for Moomintroll, the central character in the Moomin stories created by Finnish author and illustrator Tove Jansson, first published in the 1940s. The books were adapted many times for television and film, giving the character a familiar voice for generations of Scandinavian viewers. The phrase du store herbarium, a surprised exclamation, now circulates online as a short standalone clip detached from its scene. Its appeal comes from that mix of childhood nostalgia and an oddly formal expression used for a trivial shock.