老二 lǎo'èr penis Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: second child All meanings 2 lǎo'èr 2 penis 1second child 1 1 sentence for 老二 (lǎo'èr — second child) 我家老二今年刚上小学。 wǒ jiā lǎo'èr jīnnián gāng shàng xiǎoxué. My second child just started elementary school this year. Source: Dong Chinese Dictionary