Los Angeles: Canadian Prime Minister Justin Trudeau has been warned not to be a "Malcolm" when he visits the White House.

Mr Trudeau will meet face-to-face with US President Donald Trump on Monday, the latest world leader entering the real estate billionaire's unpredictable realm.

Australian Prime Minister Malcolm Turnbull infamously felt the Trump sting in their drastically shortened phone call on January 28.

"Don't be a Theresa. Don't be a Malcolm," the Toronto Star newspaper's editorial board wrote on Friday.