打鸡血
 

dǎ jī xuè

Meaning:

指 人 特别 兴奋， 好像 吃 了 兴奋剂。“打”是“注射” 的 意思。

zhǐ rén tèbié xīngfèn, hǎoxiàng chī le xīngfèn jì. “dǎ ” shì “zhùshè ”de yìsi.

It refers to someone who is very excited and acts as if they use doping drugs. “dǎ ”means to inject; “jī xuè” means chicken blood.

Example:

 最近 他 好像 打 了 鸡血 一样， 每天 都 工作 到 半夜。

 Zuìjìn tā hǎoxiàng dǎ le jī xuè yíyàng, měitiān dōu gōngzuò dào bànyè.

It seems as if he has recently been taking doping drugs as he works until midnight every day.