Not at all impressed by the melancholy suggestiveness of his task task , he was whistling whistle a lively air with great gusto .

The hoarse shriek shriek of a locomotive whistling whistle a crossing told tell him where he was .

I remember remember him looking look round the cover and whistling whistle to himself as he did so , and then breaking break out in that old sea-song that he sang so often afterwards : " Fifteen men on the dead man 's chest -- Yo-ho-ho , and a bottle of rum ! "

He could speak a little Spanish , and also a language which nobody understood , unless it was the mocking-bird that hung on the other side of the door , whistling whistle his fluty notes out upon the breeze with maddening persistence .