From Longman Dictionary of Contemporary Englishrun/hurt/fight etc like hellrun/hurt/fight etc like hellinformal not politeVERY to run, fight etc very quickly or very much My new shoes hurt like hell. → hell
Examples from the Corpus
run/hurt/fight etc like hell• I was able to breathe only with the utmost difficulty, and my arm hurt like hell.• My forehead hurt like hell and my body was bruised all over, but no bones were broken.• Must have fought like hell to find its niche within the forest, to distinguish itself within the pack.• I know he lost his legs first, and then his fingers-he died alone and it hurt like hell.• Run, North, run; just run like hell.• I remember running like hell, knowing I was being pursued and looking back for Sarah, who didn't join me.• Spring sauntered north, but he had to run like hell to keep it as his traveling companion.• We fought like hell for most of the time. 