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!
by Marcus Reed October 14, 2006
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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!
by Dawnels June 27, 2010
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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.
by x BILKO x September 11, 2016
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