疯疯颠颠走天下傻傻愣愣走天下
[fēng fēng diān diān zŏu tiān xià shă shă lèng lèng zŏu tiān xià]
In English, it means 'Walk around the world foolishly/crazily or naively/intentingly.' People use these names to display carefree life attitude: living a bohemian lifestyle with light-hearted, nonchalant behaviors, pursuing freedom.