What is the meaning of Goblin?

Traditionally, a supernatural being of folklore, typically small and grotesque or misshapen, that commonly haunts dark places, often mischievous or malevolent; a type of evil elf, sprite, or demon.

In later fantasy literature, an evil and grotesquely ugly humanoid, typically powerful and warlike, often associated with orcs and trolls.

A hoodoo.

Short for goblin shark

goblin (hostile diminutive humanoid in fantasy literature)

goblin

goblin

Source: wiktionary.org