Danish politician Anders Vistisen has been told off for using profane language while discussing the new US administration in Strasbourg's European parliament.
Mr Vistisen, a member of the right-wing Patriots for Europe group, referred to President Donald Trump's comments regarding controlling Greenland to ensure international security.
Mr Trump has expressed interest in making Greenland, an autonomous territory of Denmark, a part of the US since his re-election in November.
He hasn't ruled out using military or economic power to persuade Denmark to hand it over.
"Greenland... is not for sale. Let me put it in words you might understand: Mister Trump, f**k off," he said, before being told by the European Parliament Vice President, Nicolae Stefanuta, that "in this house of democracy... regardless of what we think of Mister Trump, it is not possible to use such language".
Another MEP had a message for tech executives including Tesla and SpaceX CEO Elon Musk and Meta CEO Mark Zuckerberg, who have sought to curry favour with the incoming administration and had prominent seats on stage for Mr Trump's inauguration.
"In Europe, we have a market of millions of users that provide money to your companies... But we also love protecting our citizens and democracies by making laws," socialist Laura Ballarin Cereza said.
"If you don't like it, you can always leave and take it or leave it. You can always take your Nazi salutes and your masculine energy and go back home."
Mr Musk dismissed the criticism as a "tired" attack.
