in Australia, definitely a Poker Machine, but we rarely use the word 'Poker' to describe someone who uses (or abuses) a Pokie. nor do we say 'go for a poke' which sounds more like a sexual connotation over here ;) most often used in the plural, Pokies.
we went down to the Rissole to have a beer and play the Pokies for a while.
thin cylindrical instrument used for compacting the ends of a joint the locking pin from a fire extinguisher makes the perfect pokie as it is the right size and has a key ring on it to add to your keys
hey man you got a pokie there? cant find my clipper!