" The One " means the person who make your heart skip a beat, takes your breathe away, makes you want to sing. You know they are the one when you smile and don't realize it, until you think of them, or when you wake up and want them to be there when you open your eyes. The one person who loves you for who you really are, and the one you want to spend your life with.
She is really the one ! Alexis, is truly the one <3

I've never felt like this before, he has to be the one !
by Aye Meh. B. October 18, 2014
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Predominantly used in spaces like Twitter:

When you see a tweet that perfectly sums up your thoughts like no other. so you retweet it with the caption, “This the one.”
by elcobells May 28, 2020
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Derived from 'on it'

1. a statement of willingness to take part in task

2. Statement of approval

Antonym: Not ons it
A: Yo! do you wanna get drunk tonight?
B: ons it!

A: Bro are you ons it or not?
B: Im not ons it man
A: OH SKEEN!
by HHMMPP March 18, 2009
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myself: what's up best buddy?
myself: oh wait i have no one to talk to
by ddanield February 11, 2018
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The one and only person who you're meant for.
You're the one isn't it obvious?
by fear God April 14, 2010
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