Doomware is a slur, commonly used in the gaming community. Doomware was first used on 2016, used by a small team of players who used it to show dominance. This small team of players were "smurfs" ( players of high rank who plays on lower ranks), they used the slur "doomware" after every kill they get as they were called hackers even though they were smurfs. This was further expanded by more and more.

when you're hungover as shit after a spending a night drunk as a skunk

Doomware - noun. Software that, once installed, takes over a systems' core functionality or alters it to the point where it's so badly high-jacked that it's effectively crippled. Doomware is virtually impossible to fully remove.