Meaning : (informal) with great speed or effort or intensity. Used for emphasis.
Example :
Drove like crazy.
Worked like hell to get the job done.
This sprain hurts like hell.
Ran like sin for the storm cellar.
Work like thunder.
Fought like the devil.
Synonyms : like crazy, like mad, like sin, like the devil, like thunder
Meaning : Used ironically to indicate the opposite of what is stated.
Example :
Says he'll help me? Like hell he will!.
Synonyms : like fun
Like hell meaning in Bengali (Bangla).