undeleted 

What you try to do when you accidentally delete something and you want it back!

No, no undeleted! Undeleted! I didn't mean to do that! Come back, Ali! Come back Ali's sister! You two meant the world to me!

undeleted by Marcus Reed October 14, 2006

undeleteable 

adjective : describing someone so oddly attractive to you, you are unable to delete them from your Facebook no matter how offensive or boring they may be, you find them irresistible
or they are just so awesome you can not imagine your Facebook life without them, either way they are undeleteable!

That girl is so annoying yet ,I find her undeleteable. Its like I have to know what stupid thing she will say next!

undeleteable by Dawnels June 30, 2010

Unrelated Wizards

A Harry Potter role-playing site, Unrelated Wizards was created when a group of people would spam the comment section of photos on the website Unrelated Captions pretending to be characters . They were then yelled at by Unrelated Captions's Admin. The group decided they must form their own website, and elected the one who called himself "Remus Lupin" to do so, which he painstakingly did. The Unrelated Wizards now spend their time having parties on their forum

Quoted from the site:
Founded by a group of rebels who would take over the comments of photos with unrelated captions, Unrelated Wizards is a website. That's all I have to say.

Unrelated Wizards by Remus John Lupin March 29, 2010

pic unrelated 

Famous statement on 4chan.org, used by people, or OPs who request a picture but just want to dump random images of their own with nothing to do with the request. By saying "pic unrelated" at the end of the post, you are automatically excused for posting something with nothing to do with what you requested

4chan user: Anyone have any Team fortress 2?
In 1920x1080 preferably
Pic unrelated

pic unrelated by yobrova December 13, 2009

Undefeated 

Means one is winning. If they had a race, they would be the one that would lead it.

Teacher: What does undefeated mean?
Comethazine: Means if we had a race I'm the one who would lead it.

Undefeated by Hearky May 8, 2020

undefeated 

Underground exclusive shoe outlet sells authentic rare nikes, adidas, and such.

"Shiiiiit did you see the crazy new air ones that Bryan just got from Undefeated"

undefeated by Pojo April 5, 2005

Undelete 

1. The action of reversing a typing deletion on a computer.

2. When a person attempts to reverse a super-shitty decision that they made, resulting in a loss.

Bethany, I was drunk last night when I broke up with you. We should undelete our relationship.

Undelete by x BILKO x September 11, 2016