1 

The first "real" number in mathematics. Also seen in large quantities in posts by authors who have forgotten to hold down the "Shift" key.

OMG j00 ju5t g0t pwn3d 81tch11111111111111111111111111111111111

1 by EJL November 25, 2004

!!1

This basically is what emo kids put at the end of sentences to give them more cred with their little friends.

ChillinemoFadge: oMgZ wHaT aM i DoIn??!!1

!!1 by CherryPashmina January 20, 2008

1% 

A segment of the population (and originally the biker population) defined by behavior that is morally incomprehensible to most people. A common (and by some accounts required) 'feat' to earn "%1" designation: To have eaten a woman out while she is on the rag.

Also, refers to the known killer(s) within a biker gang by it's members. Though this is falling into disuse.

1%'s most common meaning is simply "crazy", with the specific connetation of an unknown hidden deeper direction of the one who is 1%.

"No way should you deal with that guy, he's 1%"

1% by Brendan October 10, 2004

::1 

Your home (literally, localhost) in IPv6.
A geeky way of describing your place of residence.

That's it, I'm going ::1
Home Sweet ::1

::1 by shvytejimas October 20, 2008

1 

The number you accidentally type when you try to type exclamation marks and accidentally let go of Shift too early.

Person 1: “Omg!!!1”
Person 2: “you typed a 1 at the end”
Person 1: “Dammit”

1 by nlolhere August 3, 2020

1% 

What someone texts you if their phone is on one percent, they can't get to a charger, and they are nice enough to inform you why they won't be potentially texting you. Could also be used as an excuse not to text someone.

"What are you doing next weekend?"

"1%"

1% by ill.matic_ September 8, 2015

-1 

The phrase ¨-1¨ refers to points in a game or quiz. Deducted points from something.

If he has fluffy hair that is -1

-1 by Nozo123456 February 4, 2022