This phrase is commonly used to imply that you don't really care. Mostly used after lengthy discussions, and boring topics.
Girl 1: I was eating a burrito, and suddenly i forgot my guacamole! So i rushed to the store, but they were all out. All they had were fajitas, so i grabbed one of those and headed back. Can you believe that?
Girl 2: cool story, bro. Now go make me a sandwich.
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. Penguin Books,1992. p. 38)