Meaning of gān:
gān
肝
Noun
liver (CL:葉|叶[ye4])
Yīshēng shuō wǒ de gān hěn jiànkāng.
医生说我的肝很健康。
The doctor said that my liver is very healthy.
Verb
(slang) to put in long hours, typically late into the night, playing (a video game)
Tā zuótiān wǎnshàng yòu xiǎng yào gān yóuxì dào língchén.
他昨天晚上又想要肝游戏到凌晨。
Last night he wanted to grind the game again until early morning.
Adjective
(of a video game) involving a lot of repetition in order to progress; grindy
Zhè kuǎn yóuxì fēicháng gān, xūyào huā hěn duō shíjiān wánchéng.
这款游戏非常肝，需要花很多时间完成。
This game is very grindy, requiring a lot of time to complete.
