Clog, A.K.A. Experiment 143, is an illegal genetic experiment created by Jumba Jookiba. He is designed to clog up drains (does so by pulling out his hair and causing it to clog up different drains). His one true place is at the wig factory, clogging "pipes" that are actually air tubes that spits the hair through more pipes and into the main wig-making area, and Clog gets endless "sinks".
Experiment 143 was the 143rd genetic experiment created by Jumba with Hämsterviel's funding. He was designed to clog up drains with his hair. 143 and the other first 624 experiments were deactivated and smuggled to Earth by Jumba during his mission to capture Experiment 626.
All of the experiment pods were released and scattered across the island of Kauai.
At an unknown point, 143 was activated, captured, tamed and named Clog.
The first 624 experiments, presumably including Clog, were rounded up by Leroy and taken to a stadium to be destroyed. However, Lilo, Stitch, Jumba, Pleakley, Reuben and Gantu arrived before the experiments could be destroyed.
It is unknown whether or not Clog participated in the following battle between the experiments and the Leroy clones.
The Leroys soon gained the upper hand in the battle, but were defeated when Lilo, Stitch, Reuben and several other experiments performed the song "Aloha ʻOe", which caused the Leroy army to shut down due to the original Leroy's fail-safe.
Clog can clog up drains such as a bathtub, sink, swimming pool, etc., with his hair.
- Clog's pod color is purple.