as hell —(coll.) extremely; very much (is used to intensify adjectives):
- Nobody believed him of course, and this made him sore as hell.
like hell—
1. (interj.) not at all; on the contrary (is used to emphatically contradict a statement):
- “I’ve quite enjoyed it here.” “Like hell I have,” she added under her breath.
2. (coll.) madly; frantically (is used to intensify verbs):
- I fired when something came into my sights and then turned like hell as something fired at me!