我就当那是你童言无忌
[wŏ jiù dāng nèi shì nĭ tóng yán wú jì]
This username 'When I was a child, you were talking nonsense' expresses an attitude towards forgiving or downplaying past words and actions, considering them as harmless or made without malice. It shows the user's intention to overlook the other party's careless remarks, perhaps out of goodwill or forgiveness.