少年我长发及胸你娶不娶
[shăo nián wŏ zhăng fā jí xiōng nĭ qŭ bù qŭ]
This username translates to 'Young man, now that my hair reaches down to my chest, will you marry me?' It's often used to express a playful or longing feeling in the context of romantic aspirations. The speaker might be using this phrase sarcastically or genuinely.