pearl79
If you're one of the many fighting with the lyrics
Mairzy Doats etc
and
Mares eat oats and does eat oats and little lambs eat ivy
It turns out they're deliberate homophones (look it up in Wikipedia)
My father, who worked in the drawing office at Cammell Laird shipyard in Birkenhead in the 50s and 60s, always sang it as
Mersey Docks and Harbour Board
And little lambsey divey
Apparently some Scouse wag in the 1950s had scrawled the second line on a sign at the entrance to Liverpool docks.