/ur 

a mark of text that is inserted before a serious statement, usually used to signify an "in all seriousness" type of statement in a website post/community known for joking a lot.
in the context of this word "ur" is short for unretard

*in a post on reddit.com about a video of a car crash with funny or wacky sound effects!!!!!!!!1*
/ur that would really hurt tbh, i just hope the guy's ok

/ur by lithium-0 December 2, 2020

Ur 

The only thing you type in on your way to Urban Dictionary

All you need is to type in Ur.

Ur by yeltsA kciR May 26, 2021

Ur 

If it's too long to type Your or You're, you can type ur. Ur is common internet slang and a lot of people use it. Mainly on social media. Pronounce as: Your or You're

"Take ur sister to the shop"
"Ur so stupid"
"Fix ur face"

(I know...the last two are kinda savage)

Ur by idk_definitions February 7, 2018

Ur 

What people too lazy to type four letters type when they speak on AIM.

OMG then he wuz liek "Ur so fagit!!!1"

Ur by Tommy Wommy Womsters October 17, 2003

Ur 

A form of the word “your” but internet slang

Can I borrow ur hair brush?

Ur by Passionate-about-funnest August 7, 2020

Ur 

When you're either too lazy to type out "your"/"you're" or your grammar sucks so badly that you put "ur" and hope the other person knows which one you're talking about.

Stacy: "omg, ur not gonna believe what Brad said to me"
Kevin: "Bro, your grammar sucks, go to English class every once and a while you dumb wench"
Stacy: "How did you know?"
Kevin: "😐"

Ur by NaterSquib September 22, 2023

ur 

Moronic, half-assed spelling or "your" or "you're" used by close-minded, slow chatroom/AOLer individuals who can't type fast enough, and will use the excuse: 'i hav 2 use slang coz i am tokin 2 lots ov pplz unlyk u LOLZ', even though I could talk to several people without using a single abbreviation.

Although these slow-minded turdburglars use it to represent 'u r', or 'you are', it is not spelt the way it would be pronunced. 'Ur' would be pronunced as 'err' or 'uhr', not 'yer' or 'yur'.

ur by Bastardized Bottomburp July 18, 2003