a hell of a

US /ə hɛl əv ə/
UK /ə hɛl əv ə/
"a hell of a" picture
1.

sacré, terrible

used to emphasize the size, extent, or quality of something

:
That was a hell of a game!
C'était un sacré match !
He's a hell of a good singer.
C'est un sacré bon chanteur.