The Happy Pirate Song

A came up with this song a few moments ago.   And somehow we came up with the "argh" part simultaneously.

If you're happy and you know it

sink a boat  (Argh! Argh!)

If you're happy and you know it

sink a boat (Argh! Argh!)

If you're happy and you know it

then you really shouldn't stow it

If you're happy and you know it

sink a boat (Argh! Argh!)