A Chinese Joke

“为什么天会这么黑? 一群牛在天上飞! 为什么牛在天上飞? 因为你在地上吹!” Translation: Why is the sky so dark? Because there is a herd of cows flying in the sky! Why are there cows flying in the sky? Because you’re blowing them! In Chinese, “blowing cows” means “to brag”. Now hopefully the punch line makes sense.