When the sight of a person or thing brings back a vague memory and/or feeling of a dream you had the previous night. More likely than not, the person experiencing the dreamja vu cannot remember any additional details of the dream, creating a deja vu-like feeling of "can't put my finger on it, but I remember it." Often causes interactions with the person or thing to take on a surreal feeling for the person experiencing dreamja vu.
This is not to be confused with suddenly remembering the entirety of a dream or a dream coming true.
Person 1: "Oh hey, Jennifer! ... Whoa, dreamja vu."
Person 2: "What?"
Person 1: "Oh, I think I had a dream about you last night."
Person 2: "What happened in it?"
Person 1: "No clue."
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)