他喜谎我姓程
[tā xĭ huăng wŏ xìng chéng]
Breaking down this name - 'he loves lying, but my name is Cheng.' Here, '喜谎' (enjoys lies) implies deception while '我姓程' states the surname Chen(程). This nickname might be self-deprecating humor about someone named Chen whose acquaintance tends to deceive.