极其喜欢的人／老师（等等）
a man, woman, teacher, etc. that you admire very much
Our new boss is a helluva guy.
I admire my wife because she's a helluva fighter.
He's a helluva guitar player.
My choral instructor is a helluva teacher.
He was a helluva guy who worked for justice all his life.
See also: helluva