"Yank" is an informal and often derogatory term used in the United Kingdom to refer to an American person. The term has its origins in the 19th century, when it was used to describe American sailors who were stationed in British ports. The term has also been used to refer to American soldiers and civilians during various wars and conflicts. In modern usage, the term is sometimes used in a friendly or affectionate manner, but can also be used as an insult or slur.