The phenomenon that, in a film adaptation of a book, certain characters are portrayed as a lot more stupid than they are in the book. Supposedly this is done to make the movie 'more entertaining', but it often annoys fans of the book.
The name is derived from Merry and Pippin, two characters in The Lord of the Rings who are a helluvalot more stupid in the film than they are in the books.
That Zaphod Beeblebrox is really suffering from the Merry-and-Pippinsyndrome.
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)