那个骗子在写童话
[nèi gè piàn zi zài xiĕ tóng huà]
Directly translating, 'That liar is writing a fairy tale,' implying the fabrication or embellishment of stories may often be exaggerated or fantastical, like fables and fairy tales. Maybe the author uses this name sarcastically to imply they lie or their writing involves heavy fiction.