酷似你祖宗撩妹一把手
[kù sì nĭ zŭ zōng liáo mèi yī bă shŏu]
This username humorously combines boasting and flirting, suggesting someone who is very confident in their charm or attractiveness, to the point of comparing it with an ancestor's qualities. 'Liaomei' specifically refers to the act of flirting or seducing.