Source : WordNet®

like hell
     adv 1: with great speed or effort or intensity; "drove like crazy";
            "worked like hell to get the job done"; "ran like sin
            for the storm cellar"; "work like thunder"; "fought
            like the devil" [syn: {like mad}, {like crazy}, {like
            sin}, {like thunder}, {like the devil}]
     2: used ironically to indicate the opposite of what is stated;
        "says he'll help me? Like hell he will!"