奔跑吧兄弟拉倒吧逗比
[bēn păo ba xiōng dì lā dăo ba dòu bĭ]
It’s derived from the popular variety show 'Brother, Running'. This kind of Chinese internet slang generally represents lighthearted and cheerful self-mockery and humor, used to describe the mood after an episode with the program or similar joyous experiences. Also it could be a way of casual self-mocking by oneself or friends as a form of light-hearted humour. Here, “逗比” has no derogatory connotations at all.