Meaning of lǎo èr:
lǎo èr
老二
Noun
second-eldest child in a family; (euphemism) penis
Tā shì jiālǐ de lǎo èr, zǒng shì xiān ràngzhe dìdì mèimei.
他是家里的老二，总是先让着弟弟妹妹。
He is the second child in the family and always lets his younger siblings go first.
Nà wèi yīshēng jīngcháng yòng “lǎo èr” zhège cí lái bāngzhù huànzhě gèng qīngsōng de tǎolùn nánxìng jiànkāng wèntí.
那位医生经常用“老二”这个词来帮助患者更轻松地讨论男性健康问题。
The doctor often uses the word 'lǎo èr' to help patients discuss male health issues more comfortably.
