A fork of Rural Dictionary
It's a way to pour a mixer with a little more punch. Pour your normal alcoholic spirit into a glass, fill it with a soda of your choice and before serving gently pour another shot of spirit in a circular motion on top.
Oldmate takes a sip of a drink he's just been served "geez mate this has a bit of a kick to it!"
Server replies " you wanted something with a bit of a sting mate so the backhander you got"