鬼胎 Traditional form: 鬼胎 Pinyin (reading): guǐtāi Definitions: sinister design ulterior motive Characters: 鬼 - ghost; demon; sly, mischievous 胎 - embryo, fetus; car tire Traditional characters: 鬼 - ghost; demon; sly, mischievous 胎 - embryo, fetus; car tire