Nah nah people, you've got it all wrong(or maybe I have, but last time I heard this is what 'poke' or 'poking' is known as in Oceania). Poking is not having sex. It's when someone inserts their finger into a girl's pussy with a repeated thrusting motion. The girl's version of third base.
in northern ireland poke is another word for ice cream on a cone. so if offered a poke u are not being offered sex!
if you hear the term "pokie" this refers to the seller of the ice cream. usually in a van or other mobile stall.