Guus Bosman

http://en.wikipedia.org/wiki/Bubba

Bubba is a relationship nickname formed from brother, given to boys to indicate their role in the family, especially the oldest male sibling. For some boys and men, bubba is used so pervasively it replaces the given name. The nickname may also be used outside the family by friends as a term of affection.

Because of its association with the southern part of the United States, bubba is often used outside the South as a pejorative meaning low economic status and limited education. The term "bubba" may also be taken to mean one who is a "good ol' boy." In the US Army and Marines, bubba can mean a lay soldier, similar to grunt but with connotations of endearment instead of derision. For example "Can you make that device easier to work, 'cus every bubba is gonna have to use it."