On May 8, KCNA heard a conversation between secondary school students in the Pyongyang Metro. They were Jang Chol Hyon (12) and Ri Kang Song (12) at Pyongyang Sangsin Secondary School.

Jang: Hey, Ri, it is said that rattish Myung Bak likes more to speak American-style English than his own mother tongue. What about making analysis of the abbreviation "MB"?

Ri: The letter M has already been believed to come from the word "mouse".

Then, what the letter B will stand for? As Myung Bak is considered to be a boss of the swarm of rats, B is appropriate to the word "boss".

Jang: But I think the word "break" is more suitable to it.

Ri: Oh, that's OK. Mouse Break!