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1. v. (to x1) to find something on your computer
2. v. (to x1 someone) to prove to someone that an email or file exists
3. v. (to get x1'd) to have someone else show that you did indeed actually get a specific email.
4. n. (X1) a desktop search product that lets you search the emails and files on your computer and across your network at speeds matching the original Bell X-1, the first plane to break the speed of sound.
I used to spend a ton of time filing my emails but now I just X1 everything and can spend all that time on my Social Notworking.

My boss claimed I hadn't told him I was going to be out of the office, but once I x1'd him on it, he had to admit that I had indeed sent the Flee-Mail.

I tried to pretend that I didn't get the email full of my boss' execubabble, but once I got x1'd on it, I was forced to join in the supposed paradigm shift.
x1 by SkipOkane June 17, 2009
Related Words
x1 X13 x1aoify x10 x187x X1f x1ngqiusloverboy x1oe X1 James x10kbadbleeps
A South Korean K-pop group produced under Produce X 101. With members, SON DONG PYO, KANG MIN HEE, SONG HYEONG JUN, LEE EUN SANG, KIM YO HAN, NAM DO HYON, LEE HAN GYUL, HAN SEUNG WOO, CHA JUN HO, KIM WOO SEOK, CHO SEUNG YOUN. (They have a 5 year contract)
X1 is a K-pop group.
X1 by Idkwtd November 26, 2019
X1 is a permanent group under swing entertainment they have talented members and their leader is Han Seungwoo the best leader of all

Please support X1’s reboot!! And their upcoming album
One-it: OMG X1’s Eunsang is my bias!!
No one: X1 ROOKIE OF THE YEAR

One-it: oh wait X1’s seungyoun is my bias!!

One-it: I LOVE X1 PLEASE LOVE THEM
X1 by BurnMnetAndCJenm January 24, 2020
A radio transmission in Counter-Strike, meaning:

Go, go, go!

but said in normal life
x1, x1!!! wtf?
x1 by Lorne Richardson July 6, 2003
1) To go forward.
2) To move into or onto and object.
3) To kindly get the fuck out of my way, n00b.
"Last Night i x1'ed to your house while you were gone and x1'ed my dick into your Mother."

Me: "x1, faggot"
You: "Wtf, x1?"
Me: ::Headshot::
SirFragwell has been banned for TK'ing.
x1 by SirFragwell June 14, 2003
the nation's boy group who was taken away from us too soon </3
fuck mnet, x1 reunion when
x1 by seungyoun is a uniq rebooter November 19, 2021