Goku is the name of the protagonist of the popular "Dragon Ball" manga series, which was turned into a live action film. The character of Goku is reportedly based on Sun Wukong, the hero of the Chinese legend Journey to the West.
Too close to 'Gaki' (meaning 'brat' in Japanese)
Goku, the main protagonist of the manga/anime series Dragon Ball and its spin-offs
@Love_That_Goku, the Twitter of man who simply loves Goku of Dragon Ball fame