Twitter user @ktlikes sent along part of a tweet from the American writer Molly Crabapple
On January 20, 2017, the day of Trump’s inauguration, police kettled 217 anti-Trump protesters in the freezing cold and arrested them after sixteen hours.
Then he asked a one-word question: “NOOB?” I gathered he was talking about “kettle,” which I have been sadly familiar with over the past year, as a verb meaning (I quote from Lexico.com) to “confine (a group of demonstrators or protesters) to a small area, as a method of crowd control during a demonstration. ‘The plan was to get as close to the protest as possible without getting kettled..'” Lexico designates it as British, and the answer to @ktlikes’ question is yes.
The word first popped up in reference to protests at a G-20 Summit in London in April 2009. At the time, the New York Times ran a blog post on police response that got into the kettling term and concept. It included quotes from a Guardian article which suggested the tactic may have originated in football/soccer crowd control, and that the verb may have come from a noun used by police:
When the main body of protesters arrived on Wednesday from four different directions at their planned destination of the Bank of England, they soon found themselves hemmed in from all sides by ranks of police. Requests to leave the area were refused. This is, in police terms, the “kettle.”
Google Ngram Viewer confirms the British origin:
The graph indicates increasing U.S. use in the 2010s, and in fact the linguist Lynne Murphy chose “kettling” as her 2011 UK-to-US Word of the Year. Ngram Viewer data only goes through 2019, and I would imagine the U.S. would have caught up to Britain by this point. “Kettling” has been used well over a dozen times in the New York Times in the past year, most recently two days ago, in a quote by a Washington Post journalist describing her experiences covering Wednesday’s insurrection:
Law enforcement started kettling, creating circles of police officers around people. I’ve been in those many times, and usually I say I’m a journalist and they let me out. They didn’t in this situation, and I was taken aback. I went to three different officers and said we were journalists. When they didn’t engage at all, I thought we might be in a dangerous situation.
She ended up getting out okay.