There are 2 results of your search for dinky2.
dinky1
verb (t) (dinkied; dinkying)
1. to convey as a second person on a horse, bicycle, or motorcycle.
–noun 2. a ride obtained from being dinkied. Compare bar2, dink, dinky-double, donkey1, double, dub, pug.
Contributor's comments: [Adelaide informant] Definitley a donkey when I was a kid. My Mum used the term dub.
Contributor's comments: Used to use the term dinky where I grew up in the middle of Melbourne. So it wasn't restricted to the West where I live now.
Contributor's comments: [Adelaide informant] When I was a kid we used the term 'dinky ride'.
Contributor's comments: Grew up in country and Sydney metropolitan area and it was as you say doubling up on a bicycle etc. Also was applied to any diecast model car or truck after the famous Dinky Toys.
Contributor's comments: Albury NSW in 1950's, to dinky someone was for the rider to use the peddles and the passenger sat on the saddle. Giving a ride on the back seat or luggage part was another matter altogether. I use to hate it as a child, but some children were very competent: "Would you dinky me home please? (i.e. give me a lift on your bike)."
dinky2
noun a small metal tricycle for under-fives.
Contributor's comments: Grew up in country and Sydney metropolitan area. [Dinky] was applied to any diecast model car or truck after the famous Dinky Toys.
Contributor's comments: Small three wheel riding toy for ages up to about 4. Usually has a small tray at the back: "Courtney is just going for a ride on her dinkie around the footpath."
Contributor's comments: We had a "dinky" when we were kids in Sydney in the 70s. After about five you were promoted to the "full-sized" tricycle. After a few years on that you got your own pneumatic-tyred scooter. So was the vehicular progression amongst me and my three brothers.