Theresa May was accidentally dubbed "Madam Brexit" by a Polish translator in a live television broadcast.
An interpreter gave the Prime Minister the nickname during a joint press conference with Polish Prime Minister Mateusz Morawiecki.
And the PM could not help smiling as she heard the translation.
Mrs May arrived in the Polish capital on Thursday for talks aimed at strengthening ties with the eastern European state.
As the two European leaders addressed the media, an interpreter for the Polish prime minister referred to Mrs May as "Madam Brexit".
Mr Morawiecki was giving his introductory comments about the future UK-Polish relationship when the PM's new name was born.
Part of the speech was translated as: "It's very important for us that this co-operation, even though it will be based soon on different rules and different regulations than it has been so far because of Brexit.
"Because as Madam Brexit said, Brexit is Brexit..."
Mrs May was then seen smirking as Mr Morawiecki went on: "But regardless of all that, we all realise how important the co-operation in defence, internal affairs, economic affairs, financial affairs is, as is the co-operation in all the areas."
The pair appeared for the live broadcast after signing a joint UK-Poland Treaty on Defence and Security Co-operation, and with phase two of the Brexit negotiations, on the future UK-EU relationship, due to begin in the new year.
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