Mentally Constipated 

-the feeling of being over-bloated.
-almost at the point of puking.
-being really full

I am mentally constipated.

Mentally Constipated by TheConstipationExpert February 21, 2011

Mentally Constipated 

1. So full of shit nothing credible can get in.
2. Just won't let go of the bullshit.

Usually caused by propaganda and or confirmation bias.

He's mentally constipated in that he still believes regardless of fact, the election was stolen.

Mentally Constipated by Lexxster August 1, 2022