OK, he's a little bit of a sore loser. But wouldn't you be? What with that damn white whale tormenting him and driving him to madness.
Sure, he was a little overconfident. Cocky even. And he tried to impose his will upon nature, like some sort of god. But he's only human. And that whale bit his frickin' leg off.
But even as he approaches his fate, the salty Captain still has a few zingers left in him. And he's earned the right to call his nemesis a name or two. So take that, ya dick! From hell’s heart I talk shit at thee!