Define One On One Meaning

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 Selia
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 Caroline
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 Carmela
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 Thea
One On One

By Noemi
One On One
1. When you go from dating someone to being in an exclusive relationship.
2. Becoming someone's boyfriend or girlfriend.

Friend 1: Dude, when are you guys gonna go one on one?
Friend 2: I'm not ready for a relationship yet.

Friend 1: I thought you were going one on one with her.
Friend 2: Naw, man. I don't want to give up the other pussy.
By Lucinda
One On One
The phrase that people say that suck at everything but is the best in their little village where they live when they lose in a team-based. Normally followed by a really bad yo momma joke.

John: God dude, you really suck at everything.
Gaylord: what, you wanna go one on one, because I'm in your mom's bed.
John: (pause) Wow... really?
By Meggi
One And One And One Is Three
Really pointless Beatles lyric from "Come Together"

By Fay
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 Maryanna
One For One
In paintball, when a player on one team and a player on the other team mark (shoot) each other at the same time, therfore resulting in a "one for one", one player is eliminated with another player from the opposing team.

Larry ran to bunker Steve and Steve shot Larry as Larry shot Steve. The ref couldn't tell who shot first, so he called a one for one.
By Beulah