Skip to main content

OHNOSECOND

That minuscule fraction of time it takes your brain to realize that you've just made a GIGANTIC mistake and reconcile the fact that it is too late.
Bob hit send on his email to Tom, only then realizing that he had copied in the entire company on the x-rated pictures of him and his latest conquest swinging from his sex swing in full leather outfits.
OHNOSECOND by Buzz M. May 13, 2005
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.

Prices in USD. Free US shipping. International shipping and regional book fees are shown before payment.

ohnosecond

The momentary panic that occurs when something irreversible goes wrong. Can also be used to describe something that turns out to be reversible although you were worried at the time it wasn't.
1.Dave sent his girlfriend pictures of himself with another woman, by accident, regretting it an ohnosecond later.
2. I experienced an ohnosecond when i realised my head was stuck between the railings.
ohnosecond by brianriot July 14, 2006

ohnosecond

a wsed to describe that miniscule, fraction-of-a-second that occurs in between hitting "send" and "okay".
I should have stopped at the ohnosecond before sending that hate letter to my boss.

onosecond 

The horrible moment when you realise that you have accidentally done something very slightly wrong which has very bad (usually embarassing) implications for you. This is typically the moment of realisation that you just sent a dirty text message to a close member of family, typically your mother, rather than the intended recipient.
Message: "i'm free this afternoon so come over and fuck me senseless, my parents will be out all day"
Recipient: Mum
Message Sent
- Onosecond occurs here -
onosecond by Jimmed September 26, 2006
Word of the Day on July 12, 2020

Onosecond 

An Onosecond is defined as the second after you realise you have done something that is embarrassing or bad.
Examples where an Onosecond can kick in:

Text message contents: A sexy message or a picture of your private parts.
Recipient: a family member.

Seeing a typo in an important essay just after you have sent it.

Accidentally revealing a surprise to someone because you were distracted.
Onosecond by jackqueslack23 July 29, 2020

onosecond 

The “onosecond” is the second after you make a terrible mistake. The second when you realize what you just did and that there’s nothing you can do about it, the second when all the now-inevitable consequences flash through your mind. It is the second after you send a sexual text message to the wrong person, after you delete the wrong file, after you spill the secret that you thought they already knew. The “onosecond” is that stomach-dropping, breath-stopping moment when all you can do is say “oh, no”.
Engineer: accidentally deletes an entire content database

Engineer: *has an onosecond*
onosecond by Goootz March 18, 2023

OHNO-Second 

That minuscule fraction of time in which you realize that you've just made a BIG mistake.
"It took an OHNO-Second to realize he had deleted the company's files."
OHNO-Second by Zak May 3, 2003
More from Urban Dictionary
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
Load more