It wasn't 'Avast'; it were 'Belay there! Don't do that,' they says.

And then the boys said, just as you did, 'It was only my fun.' And then the frogs says: 'Ha!' they says, 'what's fun to you means stones come aboard and sinkin' us, and sendin' on us to the bottom.'" "That they didn't!" cried the boy archly.
"Well, I don't say it was them werry words, but what they says meant it, and here you will come bringing your fun, as you calls it, on deck, and hurtin' your pretty little sister; and you calls yourself a man." "I don't," said the boy.

"I said I'd try _and act like a man_." "Then why don't yer hack like a man ?" cried the sailor.

"You're a-gettin' on: some o' these days you'll be skipper of a big craft o' your own, and you promised I should be your bo'sun; and here you goes and hacks like that.

Why! big as I am, I wouldn't go an' hurt a little thing like this, for a golden king's crown .-- Would I, my pretty ?" "No, 'Jack,'" said Dot seriously; "I'm sure you wouldn't.