ONS is an acronym indicating the common dating phenomenon One Night Stand. You can use the acronym ONS to indicate a person with whom you have had said One Night Stand.
You: "Uh-oh, guess who just walked in?"
Me: "Shit. Who?!"
You: "ONS"
Me: "Great... and I thought I'd never have to see him again."
Me: "Shit. Who?!"
You: "ONS"
Me: "Great... and I thought I'd never have to see him again."
by Roberta Pincer April 11, 2005

In basketball when a player is shooting, gets fouled while shooting and makes the attempt and has a foul shot to come, the ref goes "two points and one......"
by J-EmCee August 7, 2004

1) The person who knows the words to your heart and can sing it back to you when you have forgotton.
2) The person that you want to spend the rest of your life with.
2) The person that you want to spend the rest of your life with.
by Dizy June 25, 2003

by nati May 24, 2003

Predominantly used in spaces like Twitter:
When you see a tweet that perfectly sums up your thoughts like no other. so you retweet it with the caption, “This the one.”
When you see a tweet that perfectly sums up your thoughts like no other. so you retweet it with the caption, “This the one.”
by elcobells May 28, 2020

Derived from 'on it'
1. a statement of willingness to take part in task
2. Statement of approval
Antonym: Not ons it
1. a statement of willingness to take part in task
2. Statement of approval
Antonym: Not ons it
A: Yo! do you wanna get drunk tonight?
B: ons it!
A: Bro are you ons it or not?
B: Im not ons it man
A: OH SKEEN!
B: ons it!
A: Bro are you ons it or not?
B: Im not ons it man
A: OH SKEEN!
by HHMMPP March 17, 2009
