El Chupanibre



El Chupanibre is a sewer monster that once terrorized the mutants below Planet Express. He is a giant green humanoid lizard with massive yellow teeth and claws. He was flushed down the colossal toilet to the sub-sewer by Bender in the course of saving Nibbler.

In the episode I Second that Emotion the crew came upon the mutant city after Bender, under the control of Leela's emotions via one of the Professor's inventions; flushed himself down the toilet in search of the lost Nibbler. Upon meeting the sewer mutants the crew was told the tale of El Chupanibre in musical form courtesy of the mutant Dwayne;

"Gather round children. For the legend, of El Chupanibre
 * -He creeps and crawls in the midnight hush
 * Silent as low-flow toilet flush-
 * -Watch your step, 'cause sooner or later
 * He'll eat you whole, and half your alligator-"