Gobblins are green, snake-like cactus enemies found in the desert levels of Kirby 64: The Crystal Shards. They wait for Kirby to come near so that they can try to bite him. Kirby can inhale the Gobblins' heads, which yield no Copy Ability when swallowed. If Kirby holds a Gobblin head over his head, it will strangely continue to chomp continuously.
Gobblin's name is likely based off the term gobble, which means to devour voraciously. The name also sounds like the mythical monster known as the Goblin.
A pre-release screenshot of Kirby 64: The Crystal Shards shows that Gobblins were originally planted in the foreground and Kirby would have to fly over them. They were also much larger at this point in development.