Of course the old guy at the end of the thread gave you a correct answer . I will embelish his answer so you will know where th term originated. Years ago the naturals were paid with either two $1 chips and a 50 cent piece. More common was two one dollar tokens(or siver dollars before the mid 60's) and a 50 cent piece. Dealers were taught to snap the tokens out of the tray, it was both showie and it alerted the floor person that there was a natural on the board. I started in the business in 1968, which means I'm a lot younger that the other fellow who answered your question! Regards, Jim