"playing the slots" is simply a term used to describe two women having lots of oral sex.
it can be used in a variety of ways. a woman that is in a lesbian relationship (especially a new one) and suddenly has no time for her friends, could be described as "playing the slots", especially if she herself has never been in a lesbian relationship, hence the operative word "playing". another time when this term can be used is when a lesbian is hooking up with many different women, thus playing the slots. "playing the slots" is also something that straight or bisexual friends do when they get bored. when one asks the other if they want to "play the slots", it is generally out of boredom.
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. PenguinBooks,1992. p. 38)