谁的真心没喂过狗
[shéi de zhēn xīn méi wèi guò gŏu]
This internet name conveys a cynical and bitter sentiment, indicating that everyone at some point in their life has felt betrayed or taken advantage of by someone they once trusted and cared for. It is a way of saying 'everybody has had their sincerity abused or discarded.' The phrase often implies disappointment in romantic relationships.