When something goes on an indefinite hiatus, stays in limbo for eternity or disappears, and you can never know what happened to such thing. Derived from Schrödinger's cat, where a cat is put in a box and you never open the box, so the cat is alive and dead at the same time and you can never know.
man remember that friend taylor from like 10 years ago who promised he was going to do 1000 integrals? yeah no that promise is DEFINITELY getting catboxed
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)