end rot

The final stage of brainrot. At this stage the victim's brain is so rotted that any post or comment made by them could easily be passed off as satire or a bot comment. But nope, that is their actual thought process. They are genuinely that far gone. It is too late for these people.

What's up with Tom? He's been rambling on about human heads in toilets all day.

He's reached end rot. It's best we cut our ties with him.

damn rot

extreme expression of disappointment and frustration as in when you forget something important or wreck something.

you forget to pick something important up, and now you have to go back and get it when you don't really have the time so you say:
"Damn rot!!!!!!
I forgot to get the milk for the cereal!"