少年你贱么背着我找小三
[shăo nián nĭ jiàn me bèi zhe wŏ zhăo xiăo sān]
This name conveys frustration or disappointment from someone (often a girlfriend or partner) feeling betrayed as the other person (the boy mentioned) secretly engages in flirtatious behavior with a third party behind her back. The term '贱' (jiant: cheap/lowly) here adds an accusatory tone indicating disapproval.