Tundro & Gloop are two fictional characters from the animated show, The Herculoids.
Gloop is part of a symbiotic pair of protoplasmic creatures with Gleep. They can form shapes including, but not limited to: cushions, trampolines or parachutes to break falls. Gloop is the larger of the two.
Tundro is a ten-legged, four-horned rhino/triceratops hybrid. He can shoot explosive energy rocks from his cannon-horn.
In "8 Simple Rules for Buying My Teenage Daughter", Lois Griffin is conducting interviews for a babysitter for Stewie. When she is unable to understand Gloop, she dismisses it by announcing that the job has been filled. In protest, Tundro shows up and fires his energy rocks at Lois.