The refrain from the song John Paul Jones by Johnny Horton:
He fought in the rain and he fought in the sun and he fought in the moonlight too
He fought with his knife and he fought with his gun and he fought till his blood ran through
Well, John Paul Jones was a fightin' man, a fightin' man was he
He sailed to the east and he sailed to the west and he helped set America free
I was thinking hard to try to figure out what that expression actually meant, but I don't think I have come up with a good visual representation of John Paul's blood running through in the context of the song. What picture comes to mind when you hear it?