说你笨乃我本性说你傻乃我天性
[shuō nĭ bèn năi wŏ bĕn xìng shuō nĭ shă năi wŏ tiān xìng]
This nickname conveys the user's playful or somewhat teasing personality. Literally, it says 'calling you stupid is in my nature; calling you silly is my innate characteristic'. It indicates that someone who likes teasing people and does not mind being considered straightforward or harsh.