reverse speedrun

1. when you delete your save file after you've put hard work into completing the game
2. when your game crashed, and all the data is lost
3. when during a speedrun you somehow manage to go back to the very beginning of a game

Kyle: dude i accidentally did a reverse speedrun
Kyle 2: wait were you playing on my save file
Kyle: uhhh...

Reverse Speedrun

When you try to LOSE a game as quickly as possible.

"I did a reverse speedrun on Dark Souls"
"Must have been pretty anticlimactic"