Meaning:
“双” means “double,” “商” means “quotient,” and “在线” means “online.” The two quotients here obviously refer to a person’s IQ and EQ, and “online” has become widely used by Chinese netizens to mean “being present.” Therefore, this term is meant as a high evaluation of a certain person, who is both intelligent and emotionally mature with good people skills.
Example:
A: 小马真是个人才,毕业两年就当上总经理助理了。
Xiǎomǎ zhēnshì ge réncái,bìyè liǎngnián jiù dāngshàng zǒngjīnglǐ zhùlǐ le。
Xiaoma is really good. He is assistant to the general manager only two years after graduation.
B: 可不是吗,名校毕业双商在线,人又长得高大帅气,自然受领导重视。
Kěbúshì ma,míngxiào bìyè shuāngshāng zàixiàn,rén yòu zhǎng de gāodà shuàiqì,zìrán shòu lǐngdǎo zhòngshì。
Isn’t he? Having graduated from a prestigious university, he is smart and emotionally mature, not to mention being handsome and tall. No wonder the boss values him.