xo 

verb: to have sex, to have sexual relations, to have some fun in bed
noun: sex

Have you and Bob xoed?

Lets go to an xo shop, I need some more toys.

xo by elanor the avenger February 9, 2005

XO 

Xterminate Opps
Meaning kill your opps

Usually a term used by African American rapper HoodYoungin XO

We don’t go by disrespect we gonna have to XO

XO by Almighty 666 😈 December 12, 2020

XO 

A person (usually a female) who is used as a filler of time for someone in between relationships. Said person is usually kind-hearted and doesn't know they're an XO at the time. They're often seen as not good enough for a real relationship and used time and time again.

Jake: "Yo man I saw you hanging out with Samantha. Whats the deal with her?"
Timmy: "Don't worry, she'd just my XO until I get Julia to notice me."

XO by Amy44390 December 22, 2017

XO 

short and normie version of hugs and kisses.

Unitoxic : xo
Gobbler : you fucking gay normie

XO by GobblerDBD July 4, 2018

XO 

its a woman that's missing the other chromosome in her genes which is called a turner syndrome

amanda has a flat chest does her genes composed of XO only?

XO by -_x September 27, 2018

XO 

Xterminate Opps
Meaning kill your opps

Usually a term used by African American rapper HoodYoungin XO

We don’t go by disrespect we gonna have to XO

XO by Almighty 666 😈 December 12, 2020

XO 

Xterminate Opps

Meaning kill your opps.

Usually a term used by African American rapper HoodYoungin XO

We gonna XO for them being disrespectful.

XO by Almighty 666 😈 December 12, 2020