EGM is used as a shorthand for "Electronic Gaming Machine". The player who continues to feed the machine is likely to have several midsize payouts, but unlikely to have a large payout. He only published the odds after a fanof his sent him some information provided on a slot machine that was posted on a machine in the Netherlands. Joker Jester Slot Machine The Joker Jester Slot Machine. The Tribe and the state must have negotiated a compact that has been approved by the Secretary of the Interior, or the Secretary must have approved regulatory procedures. After the change is made, the machine must be locked to new players for four minutes and display an on-screen message informing potential players that a change is being made. It can be calculated that over a sufficiently long period, such as 1,000,000 spins, that the machine will return an average of 950,000 to its players, who have inserted 1,000,000 during that time. Archived from the original on Retrieved "TNS".