Meaning of the word "a hell of a" in English

What does "a hell of a" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a hell of a

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

Phrase

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

Example:
That was a hell of a game!
He's a hell of a good singer.