The reason Agumon calls Marcus/Masaru aniki in the original but "boss" instead in the dub is because, in this case, "aniki" means "brother" literally but also means "boss" according to the Yakuza, therefore having the same connotations.
What does Aniki stand for?
Aniki (兄貴), a Japanese honorable term for an older brother or a superior.
Was majima Kiryu's Aniki?
Why does Kiryu call Majima Aniki? Majima is older than Kiryu, joined yakuza years before him and his rank is higher. That's why Kiryu calls him san/aniki/nii-san.
What does NII San mean?
brother
What does Nii Nii mean in Japan?
Nii; big brother in the familiar sense. Onii; a formal usage. Here are some uses. Niichan; used by a younger sibling, a mother or grand. Japanese is a hierarchical language, it's designed to function in a society where people with swords could chop your head off anytime they pleased.
What does Nii Nii Chan mean?
The meaning of nii-chan is fairly simple, broken up into two parts: nii means older brother and chan is a name ender, or “honorific suffix,” that adds a sense of endearment. So, nii-chan is a sweet way to refer to your older brother.Jan 1, 2019