The version I remember from school was interspersed with verses which many will know. The "Were off were off were of in a motor car" was used as a chorus with various verses from other well known school songs such as
It was Christmas day in the cook house the walls were grim & bare
The sergeant cook was serving duff to all the gunners there
Up stepped a smart young gunner the bravest of them all
He hit the sergeant with the duff saying we don't want this f**ing stuff
Cos beer is best beer is best
Makes you fit makes you strong puts some muscle on the old ding dong
Beer builds bonny babies and beer has stood the test
What was it Adam said to Eve -Beer is best

That's just the first verse - lots more available