perp walkglossary / PERP WALK perp walk. Slang. The act of making a suspect in custody walk before an audience, esp. members of the media. • Perp is short for perpetrator. 词条贡献者 法律翻译Bryan,毕业于新加坡知名法学院,专注翻译各类与私募股权有关的法律文件。