我命中不缺狗要你何用
[wŏ mìng zhōng bù quē gŏu yào nĭ hé yòng]
In a derogatory way, this roughly means 'since dogs are never missing in my fate, what do I need you for'. Expressing disdain or dissatisfaction with others, possibly showing off toughness or irony towards certain people or situations. However, it could contain offensive language so use cautiously.