The "slot machine" term derives from the slots on the machine for inserting and retrieving coins. "Fruit machine" comes from the traditional fruit

on the spinning reels such as lemons and cherries.

A slot is a narrow opening in a machine or container, for example a hole that you put coins in to make a machine work. He dropped a coin into the slot and dialled the number. If you slot something into something else, or if it slots into it, you put it into a space where it fits. He was slotting a CD into a CD player.

Free Slot Play is non-transferable, cannot be converted to cash and must be played at a slot machine before other credits. Once you have downloaded Free Slot Play, you must play at that machine. The amount you select to play must be divisible by the denomination at play.