拦路虎 Traditional form: 攔路虎 Pinyin (reading): lánlùhǔ Definitions: stumbling block Characters: 拦 - to block, to hinder, to obstruct 路 - road, path, street; journey 虎 - tiger; brave, fierce; surname Traditional characters: 攔 - to block, to hinder, to obstruct 路 - road, path, street; journey 虎 - tiger; brave, fierce; surname