Meic has jogged my memory :

There was an old woman of 92, parlez-vous (tris)
Dropped a fart and away it flew,
Inky stinky parlez-vous.

The fart flew in, the fart flew out, parlez-vous (bis)
The fart went rolling down the street
Knocked a copper off his feet,
Inky stinky parlez-vous.

The copper pulled out his rusty pistol, parlez-vous (tris)
The fart went rolling on to Bristol,
Inky stinky parlez-vous.

The people of Bristol were doing a dance, parlez-vous (tris)
The fart went rolling on to France,
Inky stinky parlez-vous.

The people of France were not at home, parlez-vous (tris)
The fart went rolling on to Rome,
Inky stinky parlez-vous.

The King of Rome was drinking gin, parlez-vous (tris)
Opened his gob and the fart rolled in,
Inky stinky parlez-vous.

The fart went rolling round his chest, parlez-vous (tris)
Out of his arse and up his vest,
Inky stinky parlez-vous.

The fart rolled back to the old woman, parlez-vous (tris)
How glad she was to see it comin',
Inky stinky parlez-vous-
Two Guiness, please !