British Prime Minister Theresa May has joked about the size of President Donald Trump’s hands at a fundraising event in London.

May made the crack at the Black and White Ball after being applauded by guests, The Telegraph reports. “I don’t think I have received such a big hand since I walked down the colonnade at the White House,” she said in response, apparently referencing a photo of herself and the U.S. president walking hand-in-hand during her visit to Washington last month.

The size of Trump’s hands has been a subject of mockery since Graydon Carter, editor of Vanity Fair, first mocked the president by referring to him as a “short fingered vulgarian” in Spy magazine. His hand-size was also a topic of debate during his presidential campaign.

Carter has said that the president remains sensitive about the jibe.

[Telegraph]

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Write to Zamira Rahim at zamira.rahim@time.com.