KOMFW
"Knock on Wood" with a few extra letters for emphasis. A substitute that can be exclaimed when there is no wood to knock and someone is trying to jinx everything to shit.
Sports commentator: "Stephen Curry hasn't missed a free throw in 32 attempts."
Superstitious Golden State fan: "Jinxing bastards! KOMFW!"
Superstitious Golden State fan: "Jinxing bastards! KOMFW!"