Nice one!

"All hands on deck!" John he cried,
Charley looked bemused -
"There's only grass," he replied
And poured out some more booze;
"Man the halyards, with a will, lads,
Woolloomooloo-belay!
Sheet 'er home, 'fore she's gone,
The tarp will blow away!"

CHORUS:   But it's haul upon the halyards,
                Lash down that plate of roo -
                I tell you, mates,
                We had a time
                At John and Jenny's BBQ!

Cheerily,
Charley Noble