Author Douglas Murray has branded Justin Trudeau a “narcissistic little playboy” following the Canadian Prime Minister’s meeting with Presidentelect Donald Trump.

Days after Mr Trudeau met Presidentelect Trump at MaraLago, Fox News reporter Peter Doocy outlined what was said between the two.

“We are told that when Justin Trudeau told Presidentelect Trump that new tariffs would kill the Canadian economy, Trump joked to him that if Canada can’t survive without ripping off the US to the tune of $US100 billion a year, then maybe Canada should become the 51st state and Trudeau could become its governor,” he said.

Addressing the reported comments by Presidentelect Trump, Mr Murray called the Canadian Prime Minister a “bimbo” and said he would not trust him to be a governor.

“He's a narcissistic little playboy who has been vastly overpromoted above his competency, and the only person who doesn't seem to realise it is him,” he told Sky News host Rita Panahi.