"On my ones" is a popular phrase used in South East London high schools and is simply slang for “on my own”. As all slang does, the phrase slowly died out and is now used purely for comic effect. Variants of the phrase include: On your ones, Ones and One-sies.
Guy A: I'm just going to go get some chocolate.

Guy B: Don't leave me On my ones!

Guy A: Shut up...
by BakedBeans November 29, 2009
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Performing at my best. Proficient. Sharp. Prepared to do well.
There's no better baller (basketball player) than me, this season I'm on my one
by wordem'up October 12, 2011
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Saying. An eloquent way of expressing your love and devotion.

Holds all of the below meaning;

1. The only one for me.
2. The only one I will ever love
3. Mine expressing romantic possession
4. Apple of my eye
"I want to spend the rest of my life with you; you are my one and only."
by LoveGuru June 7, 2012
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My-one.

An obese Man or Woman who makes no attempt to get in shape or improve their diet. A My-one often revels in their physical condition; and drinks and eats excessively without regard for their own health.
Oh dear - Look at her, such a My-one. She should really order less hamburgers.

Monty:I cant belive I went home with that My-one last night
Tom: how did you both fit in the cab?
by My-One69 October 28, 2008
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It means the same thing as when you tell someone to fight you, mix you, throw hands, or any other term
by Bigblackducl August 3, 2017
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It is usually used when you are gonna fight someone, 1v1. Just you two
"Keisha, keep talking shit and i'm finna get my ones with you!"
"These hoes on the train got their ones with each other over an off brand handbag"
by hailyc April 26, 2017
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Shoot my one refers to asking someone to fight you.
Guy1: Insult
Guy2: Shoot my one

OR

Guy1: Insult
Guy2: You ain't gone shoot my one.
by KxHacks December 2, 2012
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