I'm South Korean but when I met person I always tell them this as a my name. Shortened two A. and P. is my actual last names, but I don't wanna reveal it to anyone. Even for South Koreans.
Origin of the name is simple and not simple short story. There was a white English teacher who call me a Todd, or Toad when I was a primary student. I really don't like how it sounds, but I didn't know how to change the situation, because I don't speak English that time. So I just simply change the place of 'D' and 'T'.
Anyway, Nice to meet you. I'm Dott. Dott Winial.