Meaning of A HELL OF A in English

A HELL OF A

adj. or adv. phr. , informal Extraordinary; very. He made a hell of a shot during the basketball game. Max said seven months was a hell of a time to have to wait for a simple visa. The fall Max took left one hell of a bruise on his knee.

American idioms English vocabulary.      Английский словарь американских идиом.