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.
A HELL OF A
Meaning of A HELL OF A in English
American idioms English vocabulary. Английский словарь американских идиом. 2012