Bala is from Taiwan Province, that is, Minnan dialect. It is a kind of fruit called guava.

Calling others "Bala" means swearing, such as idiots and fools. In the movie "Going East and Going West", there is "Banana, You Bala". The school in the TV series "ultimate class" is called Bala High School.

Bala, it's in the music now. Aaron Kwok's Barabara Sakura is the best example. A series of songs with Bala came out, and this era is called "Bala era".