NATO Secretary General Mark Rutte referred to US leadership, not Trump, when he said "daddy" uses strong language sometimes. White House jumped on it.

I didn't call Donald Trump 'daddy' - Nato chief Mark Rutte raised eyebrows with his ‘daddy’ comment at a press conference with Donald Trump

President Donald Trump laughed off jokingly being called "daddy" by NATO General Secretary Mark Rutte. Rutte made the remark in reference to Trump's intervention in the Israel-Iran conflict, where he angrily pulled both sides back from violating the ceasefire he had just brokered.