Adverb
as hell
(postpositive, simile) To a great extent or degree; very.
It's cold as hell in here!
It was icy as hell that morning and as I put my brakes on the van just kept going.
the 88-year-old is in fact as "happy as hell" about her new novel Go Set a Watchman,
Kim is as phony as all hell
2004, Teralee E. M. Bird, Seraphim Trilogy Book One; What the Herald Angel Sang:Even though he was frightened for them, even though he was scared as hell to fail them, it felt so good to know these people cared when he hurt!