Kim Jong Un slams 'dotard' Donald Trump
North Korea's riposte to Donald Trump had many native English speakers reaching for their dictionaries.
A dispatch described the US president as "the mentally deranged US dotard".
Dotard means a person in a feeble and childish state due to old age.
It is a translation of "neukdari", a Korean word that refers to elderly people in a derogatory manner.
The Korean Central News Agency transmitted Kim Jong Un's statement verbatim.
It followed Mr Trump's speech at the UN this week mocking Mr Kim as a "Rocket Man" on a "suicide mission", and saying if the US is "forced to defend itself or its allies, we will have no choice but to totally destroy North Korea".