What is 4B and who can participate?

When Donald Trump was announced the winner of the U.S. presidential election, American women began posting about the 4B movement, a radical feminist movement that originated in South Korea. From one woman saying she broke up with her Republican boyfriend on election night to join 4B to another saying she's building her "dream body that no man will touch for the next four years," discussion of the movement has exploded online.What is 4B?4B stands for the "four nos," which translates to no dating,