Oné 

Not to be confused with the number one, Oné is the baddest and sexiest bitch alive. She loves to have a good time and be the life of the party, but she can also be chill and bring you out of ur shell if ur shy. Her fashion sense is untouchable and her knees are Megan Thee Stallion quality. Never let go on the Oné in ur life or else you'll regret it.

Oné may not know it but she is the loml and I will forever cherish her in my heart

Oné by UbiquitousLad December 20, 2021

One 

The number of times it takes to post this exact definition on Urban Dictionary before it gets accepted

Social experiment: How many times do you need to post this exact definition to Urban Dictionary before it gets accepted? One!

One by America Lover 🇺🇸 December 7, 2018

One 

Can be used as 'goodbye' or 'later'.
Short for "One Love"

Joe: "see ya tomorrow"
Nikki: "one."

One by nati May 24, 2003

One 

n. The loneliest number.

The loneliest number

One by SpoonyBard September 25, 2003

One 

To close out a meeting, dialogue or some instance of communication with another/others by equating this term with "take care."

"Ayight man, I'm bout to bounce, I'll holla at you later. One."

One by Aaron August 5, 2003

One 

Regarded by many as the best Metallica songs. The song portrays a young soldier who is returning from war, suffering massive damage from a landmine. He cannot speak, he cannot move, he is essentially a head with no body.

Metallica did two versions of this song originally, the original and the rare version. In the rare version, during the long instrumental sections it is filled with speaking, the speaking of the soldier in his mind, the doctors, and his father. The boy pleads for his father to kill him, the doctor realizes the mistake of taking this patient and making him live through this "hell".

On "...and Justice for All."

One by Aaron March 5, 2005

one 

means goodbye, spoken as a true gangsta

You leavin? Aight one bro."

one by P Schizzle October 3, 2003