- 天王老子 tiānwánglǎozi highest authoritythe supreme power; a person of the highest rank or most formidable authority
- 老子英雄儿好汉，老子反动儿混蛋 lǎoziyīngxióng'érhǎohànlǎozifǎndòng'érhúndàn like father, like sonCultural Revolution slogan expressing the idea that if the father is a hero, the son is a fine man, but if the father is a reactionary, the son is a scoundrel
- 阎王老子 yánwánglǎozi Yamathe King of Hell in Chinese mythology and Buddhism, often used to refer to a person as intimidating or cruel as the devil