Yiddish for "completely lost" or "way out in left field." Literallylost, or figuratively, as when someone is given some information and comes to absolutely the wrong conclusion, like adding 2 and 2 and coming up with 7.
John was driving from San Francisco to Los Angeles, but after the missing the exit to I-5, he kept driving for a couple of hours and ended up in Reno -- totally farblondjet.
Rosalind went to Macy's and Nordstrom to buy a blouse but couldn't find them, so she came to the conclusion that blouses are out of style and the don't make women's them any more. She was completely farblondjet on that one, as she so often is . . . .
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)