shit a brick 

Lay a hard solid turd, usually a long and thick shot that can get stuck in the narrow passage of a toilet (and cause a serious overflow for your downstairs neighbor).

When I was told that I'd just shit a brick, I actually felt like I'd just shit a brick. (The latter uses the more accepted definition, associated with anxiety and stress.)

shit a brick by ReverseHaloEffect May 12, 2020

shit a brick 

Similarly to shitting stones, shitting bricks, shitting rocks, shitting a brick is when you are terrified, it can be a joking tone or a serious tone although it's mainly a joking tone.

On another serious note I actually shit what seemed to be a brick just a few minutes ago, it was shaped as a block and it inspired me to write this.

My guy, I just shit a brick after taking that incredibly hard test
I just shit a brick and afterwards I felt so good I almost became high
I just shit a brick and it looked like a Poneglyph from one piece

shit a brick by Greatneil80 November 28, 2022

Shit a brick 

When you take your first shit after anal sex

Tom said we should have anal. Imagine the first shit after, I would literally shit a brick.

Shit a brick by Milf33 May 5, 2025

Shit a brick 

The art of shitting a brick after anal sex.

Tom wants to do anal tonight. I'll shit a brick for days after...

Shit a brick by Milf33 May 6, 2025

Shit-a-Brick 

Going insanely mad at something.

John: Aw man I ate Sally's last piece of cake.
Ron: Oh man she's gonna Shit-a-Brick.

Shit-a-Brick by Lauchris August 1, 2010

shit a brick sideways 

An EXTREME case of constipation

Before:
I feel like I'm going to shit a brick sideways!!!

After:
Man my ass hurts, I just shit a brick sideways.

shit a brick sideways by HDR February 4, 2004

shit a brick and rape you with it 

To be extremely surprised and displeased about something, normally something that effects you personaly, then the act of justice opon whomever did it.

"Dude when he finds out you backed into his car, he's gunna shit a brick and rape you with it"

shit a brick and rape you with it by Zach "Tay Tay" April 20, 2007