Define This One Meaning

This One
an affectionate way of how someone might refer to their "significant other", usually in the presence of that person and others.

"I'm a vegan...but THIS one here loves his sirloin!"
By Alicea
This One
A phrase used by submissives in the BDSM relationship to refer to themselves when they have been forbidden to call themselves 'I'

By Tony
One On One
BASKETBALL, where you (and only you) play against one other person

I played against Santiago in a one on one basketball game
By Deidre
One On One
An informal code of street fighting, not allowing bystanders to interfere in the fight.

Hey bitch-ass, let's square it up one-on-one in the midldle of the street!
By Hinda
One And One
a bag of heroin and coke together.

i wanted to do a speedball so i told my connect i need a "one and one" bag.
By Maressa
The One One
The person that makes you change everything you said you wouldn't ; put it down in every way ; the one you meant to be with ; time enough : able to control without force ; Mesmerizing

Boooooyyyyyyyy, You the one one!
By Genny
One On One
1. A game where the only opponents are two people playing against each other.
2. Also know as speedballing; a mixture of cocaine and herion, most often injected.

1. Jack says to Tommy, "Let's play a game of one on one"
2. After getting out of lock-up, I said to myself, "I'm 'bout ready to head downtown and gets me a one on one!!"
By Papagena
One On One
san francisco bay area slang for a combination of cocaine and heroin, aka a "speedball". a hit of tar heroin and powder cocaine sold together on the street for $10 to $20.

if youre in a san francisco neighborhood such as the mission, and you hear a guy calling out "one on oners, one on oners", hes not challenging you to a game of basketball.
By Sabrina
This The One
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 Evaleen
One On One

By Kania