One

One is a number that follows zero and precedes two. In scientific notation, it is written as ten to the 0 zeroth power.

Person A: Hey, where did all the apples go?
Person B: Oh I ate them and left one.

by Isaac Pennachi February 6, 2022

One direction

One direction is one of the best boy band ever they were formed on the 23rd of July 2010 on a tv show called the X factor. The band is formed by Harry Styles Niall Horan Liam Payne Louis Tomlinson and Zayn Malik. The band took a break in 2016 for 18 months but still haven’t come back. There fandom is called directioners and currently the boys have there own solo careers.

Person: one direction is never coming back together

Directioner: Say that again and I will slap you accross the far like Louis did to Niall

by Directioner 💚🤍🧡💙💚💛💞💞💞💞 May 7, 2020

Mark I (Mark One)

The first in a series.

I saw that with my own Mark I (Mark One) eyeballs.

by Proof_positive August 22, 2011

word-by-me-which-no-one-knows-or-uses-because-it-is-not-in-the-Webster-dictionary-so-I-wrote-this-word-in-the-Urban-Dictionary-site-which-gets-my-creativity-of-words-into-action

This is a phrase into a word which is unnecessary long to become a word, but why not add it?

A: Dude, I got this random word I wish was on Webster...
B: Bro, What is it?
A:Bippity-boppity-doo, which is a word-by-me-which-no-one-knows-or-uses-because-it-is-not-in-the-Webster-dictionary-so-I-wrote-this-word-in-the-Urban-Dictionary-site-which-gets-my-creativity-of-words-into-action.
B: You wrote it into Urban Dictionary???

by minh_says_urban March 14, 2025

a real one

yaboifran2 on tik tok

yo yaboifran2 is a real one

by littlebeany June 18, 2021

One handed warrior

When someone masturbates / a very active masturbate-er

I saw Phil the other day in his closet pulling a one handed warrior to your sister.

by that other OTHER guy September 1, 2015

This isn't one of those times

The basis of civil rights is changing how people interact with you in public.

Hym "This isn't one of those times! This is a 'I'm entitled to money for you doing that' times."

by Hym Iam September 20, 2025