One day 

Tomorrow

One day I'll sing for you

One day by anonymous September 14, 2020

One day 

a period of twenty-four hours as a unit of time

I will give ridderp ownership of the discord server and all of Luigi's coins one day.
-Amshan

One day by valorant or something idk November 28, 2020

One Day 

A fictional date in the future where you will complete all of your backlog and optimizations

One day we will add unit tests

One Day by PaulICS123 November 4, 2021

one day feels like three autumns 

a chinese idiom that is used when you miss someone so much,
one day feels as long as three years.

When I'm without you one day feels like three autumns

one day feels like three autumns by cakeloufornia May 18, 2015

One Day Weekend 

A day off in the middle of the week, that makes the night prior feel like Friday night, but the day of to feel like Sunday.

School was canceled on Wednesday due to a snowstorm so a One Day Weekend was sent to us from the heavens.

One Day Weekend by Goat The Man December 31, 2008

one day flu 

Excuse to miss school for an event.

Man mom i have the one day flu.

one day flu by Orgasmic Velociraptor December 12, 2016

One Day Stand 

To have a "thing" with someone, where you act like you're dating but without commitment and you only do it for one day.

Person 1: Do you and him dating
Person 2: No we just had a One Day Stand.

One Day Stand by Wise Old Woman May 16, 2014