The ice cream van would come down our street almost daily during the long hot summers of my childhood (yes I know they probably weren't long or hot but we always think they are when looking back on them) and we'd rush after it until it stopped like it was some sort of motorised Pier Piper. We'd usually get soft scoop cones and if we had enough pocket money, we'd get a Cadbury's chocolate flake added to it and that would be called a 99. We'd sometimes get lollypops or now and again we'd get sliders. We didn't often get sliders from the ice cream van as they were something we could fix outselves if mum had a tub of ice cream in the freezer.
A slider : a rectangular block of ice cream about an inch thick between two wafers.
We'd eat a slider with all the reverence and tradition that is now used here for eating oreos. Some would simply lick the sides and wear away the ice cream until you got to the point when you could squeeze the wafers together and the remaining ice cream would ouse out and be licked off, leaving the complete wafers as a sort of bonus at the end. Others would bite into the wafer/ice cream block and eat it all that way.
I was a side licker !!
Maybe anyone reading this from foreign parts could let me know what you call such an ice cream treat as I'm sure they exist in most countries.