Green’s Dictionary of Slang

coach-driving.

1875		C. Birch-Reynardson Down the Road 49: It was in one of my very early coaching days that Tom Hennesy, who was always fond of giving me a lesson in ‘waggoning’, and by whose side I was sitting on the box , said [etc].
1896		A. Conan Doyle Rodney Stone 138: It’s a fine day for a little bit of waggoning.