Uno Friend 

1. A friend on Xbox Live that you do not know in actual life

2. A friend on Xbox Live that you encountered during a game of Uno for Xbox, who may or may not have sexually exposed himself to you via Xbox live camera

Example 1

*XxXLeetGamerXxX signed on*

Brett: "Who is that? Is that one of your Uno Friends?"
David: "Yea I played Halo with him a few weeks back, idk his real name."

Example 2

David: "I was playing Uno on my Xbox the other day and some Uno friend whipped out his dick on the camera!"

Jason: That's soo nasty

Uno Friend by Jsmoney232 February 24, 2010

Uno Reverse 

An ancient artifact wielded by the gods. Can reverse any insult on man. It’s only weakness is the “no u”

Person 1: Ur mom gay.
Person 2: no u
Person 1: *uno reverse*

Uno Reverse by A_Cristmasfied_Walmart November 7, 2019

Uno Reverse Card 

When your friends call you gay, this the card you pull.

"HA ur gay bro" - DudeBro 1
"Uno reverse card bitch" - DudeBro 2

Uno Reverse Card by _CrAcKhEaD_eNeRgY_ August 25, 2019

UNO Reverse Card 

EPIC NO U CUMBACK

Fabian: Thanos snap you ded
Dao: UNO REVERSE CARD

UNO Reverse Card by UR MUM GIG BEI May 6, 2019

Uno Reverse Card 

The ultimate weapon, all attacks or anything of the sort will be immediately sent back at the attacker(s) upon playing this card.
If you strap one to your chest you're virtually invincible.

Joe: "yo wtf happened to that guy?"

Yuri: "He tried to hit me, and I used my uno Reverse card to reverse his attack."

Joe,"ah I see."

Uno Reverse Card by GoldExperienceRequiem February 16, 2020

uno ballo 

1. pain in the asshole who asks "do you want this cock?" while you are sleeping

2. the one-balled wonder

3. anthony of the one balls

1. uno ballo stuck it in me

uno ballo by Keith D March 5, 2008

Uno plus 4

A card that forces the next player to draw four cards unless they can stack it. It is actually a message saying that person hopes you die in a shallow grave and don't want you to be alive.

Guy 1 with one card left: Uno
Guy 2: *lays down Uno plus 4*
Guy 1: "You're dead to me."

Uno plus 4 by That Uno Man May 29, 2019