When everyone remembers someone as being funny or relevant, but either that person hasn't been funny in YEARS or they never have been.
Gal: "I love how Sarah Silverman stays funny and topical"
Guy: "Name the last funny thing that Sarah SIlverman did..."
Gal: "That Matt Damon song was kinda funny.. and that Mr. Show stuff.."
Guy: "The Matt Damon song wasn't funny and that was 2008.. Mr. Show was the mid-90s, and she was the only unfunny person on there.."
Gal: "Oh jeez, you're right.. The Sarah Silverman Effect strikes again."
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)