The utter destruction of a down pillow or pillows in a confined space, or the evidence thereof. Some pillow fights can result in pillowgeddon, but not all pillowgeddons are the result of a pillow fight.
I placed a beloved goose down bolster pillow handmade for my wife by her longdead aunt in the dryer. When I opened the dryer door after multiple drying cycles I was witness to pillowgeddon.
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)