When exit polls began pointing to a clear victory for Donald Trump in the US presidential election Nov. 5, Google registered a surge in search interest for the term “4B movement.” The phrase refers to an unstructured and leaderless feminist campaign that began in South Korea five years ago as a protest against the perceived oppression of women by men.

The 4B movement originated in South Korea in the 2010s, at around the same time the #MeToo movement took hold in the United States. In Korean, “B” is shorthand for the word bi, meaning “no.” The four “Bs” are bisekseu (no sex with men), bichulsan (no giving birth), biyeonae (no dating men), and bihon (no marrying men), per The Cut.