An addition to the words kindly posted by Jim Dixon.
Each time through the chorus, there is an addition to who is riding to Sligo, so by the last chorus it becomes

To me toady toady Truman Capote
Faith and begorrah it's Maureen O'Hara
Hark to the herald it's Barry Fitzgerald
All in a Volswagen with Victor McLagen
Driving to Sligo with Molly O'Shea
For to dance by the sea
With a right cup of tea
On a bleary Sunday morning
For to dance by the sea
With an LSD
Timothy Leary Sunday morning