容嬷嬷当年美爆炸李公公当年帅掉渣
[róng mā mā dāng nián mĕi bào zhà lĭ gōng gōng dāng nián shuài diào zhā]
This username humorously combines references from popular Chinese drama with exaggeration to imply the subject has been extraordinarily attractive. Here, '容嬷嬷' refers to a beautiful and kind woman while '李公公' represents an elegant man from ancient China drama series.