Der Kinderlumper is a one-time villain of Phineas and Ferb, appearing in the episode "Der Kinderlumper". He is a mythical monster from Drusselstein's folklore.
The story of the Kinderlumper seems to have two versions. In one version (told to Roger Doofenshmirtz, the current mayor of Danville), the Kinderlumper is a kind, loving creature who brings presents in the night, similar to Santa. The other version (told to Roger's brother Heinz Doofenshmirtz) depicts him as a krampus-like ghoul that kidnaps children and puts them in his "gundersack" if they're naughty, or for very minor reasons, such as blinking, having saliva in your mouth, or drinking a glass of water. His powers seem to be coming out of toilets, snakelike flexibility, and shooting bats from his cane.
In the episode, Heinz attempts to briefly turn himself into a Der Kinderlumper in order to scare Roger into relinquishing control of the Tri-State Area, but soon finds out that Roger was told of the kind loving version, much to his dismay.
Der Kinderlumper is a huge, trollish human-like creature with a nose like a broom handle and a huge sack over his shoulder. He looks vaguely like Heinz with a long beard.
- "Kinderlumper" seems to be the match-up of two German words: "kinder" and "lumper", which means "children" and "stevedore".
- He is probably inspired by Krampus, a similar dark satyric-demonic bogyman from Southeast German and Austrian folklores.