Clum Babies are the equivalent of sperm for the Sockbat people. They are anthropomorphic sperm cells that come out of Sockbat's mouths when they masturbate. They first appeared in the eponymic episode Clum Babies. The material that Clum Babies are made out of happen to also be serve as perfect medicinal cures for any disease in the world.
- Jonathan Kimmel, the writer of the episode where they first debuted, invented the word "clum" in reference to when semen takes on a clumpy form.
- In the episode American Idol Parody Clip Show, when the cast was packing up and leaving the series, a Clum Baby was seen as one of the things in Wooldoor's box.