UDing 

The act of being on an Instant Messenger (AIM, Yahoo IM, Windows Live, etc.) and sending your friends links to what ever you're seeing on urbandictionary.com, and they send you one back, and so on.

Guy 1: So what were you doing yesterday?

Guy 2: I was UDing with Dean.

Guy 1: Douche.

UDing by JavzMyster August 20, 2009

Uding 

A chonky cat
Likes to grr grrr korweew

Uding doesn’t like human food

Uding by saytgnmrhd November 22, 2021

UDing it 

adding new words to Urban Dictionary

"I just spent the past few hours UDing it up."

urban dictionary urbandictionary.com

UDing it by Bluegutsoup April 8, 2010

using autism as an insult 

well fuck you if you do this. don't. don't say something is 'autistic' if you think its weird, don't call someone autistic if they're not, don't say 'autism' with no context as if it's a joke- it's not. seriously, fuck you if you do this. stop it, get some help, anyone with any type of autism is better than you.

Person 1: "hey did you hear insert dickhead's name using autism as an insult?"
Person 2: "yeah, let's go beat them up and call them neurotypical."

using autism as an insult by ADHD killjoy December 6, 2019

undingable 

Cannot hold; be unable to stand up to or resist further

The noise was so undingable that I couldn't bear it anymore.

undingable by Jackey Javi November 16, 2016

udigg 

Do you understand what I mean?

I'm gonna go cop that new Vlone shirt, Udigg?

udigg by Kittykatkarra January 1, 2017

Using Cheat Codes

The act of owning by exploiting the system, preferably by means of bending the rules.

The New England Patriots are well-known for using cheat codes.

Using Cheat Codes by Hacking_The_Mainframe April 30, 2009