A way of self-mockery. Recently, there are always some people who are dissatisfied with the results of the college entrance examination and the World Cup, so they express their disappointment and sadness through words and want to leave this world, so they want to jump off a building! ! (Of course, so it's fake. The rooftop is the place where people ridicule to "jump off the building"! There are many other sayings, such as seeing you on the roof! And make way, xxxx people have to rush up and take off first, etc ... I hope I can help you (this is what I want to ask).