Unis 

A replacement for words containing the prefix, "uni-". Has a more negative connotation than mainstream words such as, unitard, unicycle, uniform, unibrow, and the like. To clarify, in speaking to a friend, the term unibrow is more appropriate; for an enemy, unis is fitting.

(replacement of unibrow)
Girl 1: "OMG look at her new default! She's sporting full facial hair-- a stache, beard, AND unis!"
Girl 2: "WTF I would totes hit up the salon so hard if I had a unis!"

(replacement of unicycle)
Girl: "That man is riding a unis throughout campus! What a toolbag!"

Unis by fourthroomie October 14, 2010

unis 

Uniformed police officers.

The two unis tag-teamed the banger, playing good cop, bad cop.

unis by pabrown May 1, 2008

unis 

Unicorn penis.

I have seen a unis.

unis by Grenisthewenis January 13, 2016

UNIS 

an NYC international school in manhattan and queens that is run for the children of UN staff and peoples and other people. they are smart and preppy but not that snobby. also, they suck at sports.

mom 1- oh my daughteerr is going to brearly
mom 2- oh my daughters not a transvestite, she goes to UNIS and speaks 3 languages...beat that bitch

UNIS by coolchickbeatthat September 25, 2009

Unis 

A penis where the testicles and the penis are fused. (Also known as a Unit)

Felicia doesn't like Juan because he has a unis and she can not utilize her dribbling skills.

Unis by SirRuggedBallz May 3, 2018

UNIS 

A shit hole of floating info/rumors/crap.
(the stupidest stuff is heard by everyone, and never seems to fade)

i just said one thing, and now everyone seems to know. and it was 3 YEARS ago *sniffle*

ya well, that's what we call a UNIS...

UNIS by randompersonlol July 1, 2012

Unis 

When a person quickly and sharply slaps another person in the forehead, creating one of those classic "what the hell?" moments, which always tend to be fun.
RULES:
1. You MUST say unis when performing a unis on somebody. It is pronounced (yoo-nIS).
2. It is MANDATORY that it be on the forehead. If it is anywhere else on the body, it is null and void.
3. It is IMPERITIVE that it be a slap. Don't punch people in the forehead. You'll look like a complete retard, and it won't count anyways, so it'll just be a big lump of fail.

Dustin: (slaps John on the forehead) UNIS!
Jonathan: Damnit Dustin! What'd I tell you about that?
Kreig: (also slaps John on the forehead) Unis!
Jonathan: SON OF A BITCH!!

Unis by TheGrimReefer986 June 10, 2011