我是哈哈大逗比
[wŏ shì hā hā dà dòu bĭ]
This user name suggests that the person is someone who enjoys being a joker, making jokes and playing around. '逗比' refers to a funny or goofy person in Chinese culture. Here, the username implies lighthearted fun, humor and perhaps an ability to entertain others or take life without too much seriousness.