"Mo chuisle" literally means "My pulse", but can mean "My love" or "My darling".
It's a term of endearment taken from the original phrases "A chuisle mo chroí", or "Pulse of my heart".
When speaking directly to the person, use "A chuisle". When speaking about them say "Mo chuisle".
The movie Million Dollar Baby incorrectly spells "Mo chuisle" as "Mo cuishle".
是爱尔兰语（ Irish）吧
我只能找到这么多
国外似乎也有不少问这个的
和Million Dollar Baby相关太大