The pair had previously been engaged in a war of words after a comment the Hollywood star made in 2007.
One of them was from The Terminator, the other from a lesser-appreciated entry in his film catalogue.
The actor and former governor accused the outgoing president of ‘misleading people with lies’.
Nothing quite like rubbing salt into a wound, is there Arnie?
The Hollywood star discovered a custom pipe made by a fan for his birthday, which prompted an epic exchange.
The Guardians of the Galaxy actor also shares a 7-year-old son with ex-wife Anna Faris.
The screen icon and former California governor urges people to remain inside with the help of his miniature pony Whiskey and donkey Lulu.
The Late Late Show host also told Arnold Schwarzenegger how President Donald Trump’s daughter responded.
Arnold Schwarzenegger Reassures Fans He’s OK After Being Dropkicked By ‘Idiot’ Man At Meet And Greet
"I’m just glad the idiot didn’t interrupt my Snapchat.”
"This is an amazing insight in to very fragile ego."