co znaczy ten zwrot?

"Any girl can have any guy she wants, she just has to consistently chip away at him while he doesn't suspect a thing. It might take a while (even years) and you'll have to be extremely patient, but he'll begin to look at you differently and the seed of 'maybe' will be planted in his mind." As a guy, I will confirm that this is true. co znaczy tu zwrot consistently chip away?