Hocker, A.K.A. Experiment 051, is an illegal genetic experiment created by Jumba Jookiba. He is designed to spit acidic saliva. His one true place is with Mrs. Hasagawa as one of her "cats". He is voiced by Frank Welker.
He was activated by a watering can. The episode "Mrs. Hasagawa's Cats" also features these experiments: 002 Doubledip: Designed to double-dip, 031 Gotchu: Designed to pinch, 044 Forehead: Designed to sing off-key, 077 Zawp: Designed to be lazy, 111 Mulch: Designed to tear up the ground, 134 Shredder: Designed to shred paper, 214 Pix: Designed to take bad pictures, 288 Boomer: Designed to be a boomerang, 358 Manners: Designed to turn people polite, 507 Woody: Designed to eat wood, 521 Wrapper: Designed to wrap up things, 533 Blowhard: Designed to blow things, and 566 Derrick: Designed to drill holes.
Hocker is a green experiment with a huge teal nose and a yellow spot around his eyes and a yellow stripe on his ears and tail (in his episode, the spots and stripes were originally red).
Hocker can spit an extremely corrosive acidic saliva that can eat through wood in three seconds by hocking it up using his abnormally-sized nose.
If Hocker is given acid reflex medicine from Quelte Quan, he will eventually stop spitting acid.