The words I have are:

Have another drink boys, Oh have one with me
We're home from the sea and we're back on the shore
and if you get too drunk boys in this company
you'll roll round Cape Horn on the Rory O'More (??????)

He lived on the dockside in Liverpool town
And he always was down on the ??????????
Everyone knew him as Dublin O'Shea
Some say he came from Killarney

Does anyone know the full song?