unipooper 

The mysterious criminal lurking in the halls of Burnt Hills-Ballston Lake High School, who has become notorious for defecating, and proceeding to thrash it about the walls in a festive manner.

"Dude, have they caught the unipooper yet?"

"The unipooper strikes again!"

unipooper by Ryan Esposito December 25, 2007

UniPooper 

One who wreaks havoc on a bathroom or restroom in the same fashion as the Boston Marathon bomber. Also known as a large bowel movement.
See Also: Blowing Mud

"dude I just blew up the toilet like the Boston Marathon, call me the UniPooper"

UniPooper by RAKtheDUECER April 13, 2014

Unproper 

Improper use of improper.

Misinformed: Oh, yeah? It's YOU'RE not your. Don't use unproper grammar if you're going to argue.

Me: *facepalm*

Unproper by ryvirchild December 6, 2010

Unproperty 

Something not propertized

The girl broke up with her boyfriend by telling him she was now unproperty

Unproperty by Safy April 20, 2010

Unpooped 

Did not take a dump at the right time resulting in general nuisance to colleagues at work.

Sid, my teammate often comes to work unpooped. Its stinks in here.

Unpooped by adiman October 21, 2010

The Unipiper 

The coolest motherfucker there is in Portland, OR. He rides around on his unicycle playing a bagpipe in a Darth Vader costume and a Scottish skirt, sometimes with the bagpipe shooting literal fucking flames as he plays it. Coolest shit ever.
He’s the next best thing to Bigfoot to find in person while you’re here in the west coast

Guy 1: “I was at Rose City Comic Con when that dude on a unicycle or some shit came by and gave me a fist bump”
Guy 2: “Dude, the fucking Unipiper?”
“The Unipiper” must be included in the usage showcase for me to post this. Wack ass shit

The Unipiper by DudeGuyMan669 January 6, 2023

Uniboober 

When one has just one boob...

Hey, "Uniboober" whazzup???

Uniboober by Sparkark July 9, 2009