小弟弟 xiǎo dì di 🔊 little brother + Review this word Meanings xiǎo dì di little brotherlittle boy(coll.) penis Its characters 小xiǎosmall; youngHSK 1弟dìyounger brother In sentences Pinyin 我wǒ肯定kěn dìng他tā的de小弟弟xiǎo dì di很hěn小xiǎo。I'm sure his brother is very young. #876781