shit-up 

British prison officer's slang for an inmate seeking attention by smearing his cell with excrement.

Wow did you see that shit-up in Block 9 this morning? I pity the cleaners.

shit-up by Gruntyface July 19, 2010

shit-up 

when a huge dump comes flying out your dunghole so fast that you are lifted off of the toilet seat

Guy: Oh shit here it comes!

'turd shoots out like a bottle rocket'
'guy's head gets stuck in ceiling'

Guy: Damn i hate doing those shit-ups.

shit-up by swamp thing November 16, 2005

shit-up 

Working out vigorously with full bowels, then trying too hard to get that 'last' sit-up. At least your whole anus didn't pop out, like has happened to some unfortunate weight lifters.

Weight lifter: *pant* *pant* uuHHUNNGHHT! *sploosh*
Random hot girl walking by: Aww gross... did you just shit-up?

shit-up by beep beep bitch! March 6, 2007

Shit Up 

When your keyboard autocorrects shut up to shit up.

(Texting) Person 1: "Hey dude why don't you shit up?"
Person 2: "Don't you mean shut up?"
Person 1: "SHIT UP!"

Shit Up by NaniKoreWa June 17, 2018

shit up 

To shit someone up is to scare the shit out of them.
To be shit up is the state of being scared shitless.

"don't be shitting me up"
"lets go and shit em up"
"we shit em right up"
"they were shit up, so they shit out"

shit up by Bitplane January 23, 2006

Shit up 

When a person talks too much shit and creates drama

Omg hunter shit up

Nikki you need to shit up

Chelsey if you don’t shit up

Shit up by Cautiondelicate May 17, 2019

shit up 

When auto-correct changes your message from shut up to shit up.

Text convo:
Robb - "What's up asshole?"
John - "Shit up!"

shit up by johndeezo April 20, 2018