偶尔也会嘲笑自己
[ŏu ĕr yĕ huì cháo xiào zì jĭ]
'Sometimes I mock myself'. In a self-deprecating style, such a username implies the person isn't afraid to admit mistakes and weaknesses and even takes them lightly and finds humor in it, suggesting an optimistic and humble way to face their own imperfect lives.