the second after you realize you were tricked, played or being dumb and fell into a situation that makes you go 'OH-NO'. named after the phrase 'oh no' as shown with the letters ono.
person 1: 'i love pineapple' person 2: *pulls out knife* person 1: 'this is my onosecond.'
the word you can't lose and it shows up on every definition.
Onosecond shows up on some random definition Me: No, shut the fuck up
By EpicGamer304321
Noun, The second where you realize you've made a horrible mistake that will lead to disaster, and there is nothing you can do about it.
*At the Dinner table* Dad: So... *pulls out your phone with search history open* You: *remembers you didn't delete it* onosecond
By esckey123
The very second immediately after you make a horrible mistake, and can only wait for the now inevitable consequences. It's the second after you send a text to the wrong person, the second after you drop your phone onto the train tracks, the very moment after holding hands with the wrong person, the point in time when all you can say is "oh no". In the onosecond, people tend to wish for; the floor to swallow them up, a giant hand and keyboard coming to press ctrl+z, the ability to transform into a flock of birds, who can fly away, etc.
Person 1: *makes a typo, accidentally tweeting a slur onto the official nintendo twitter* Person 1's boss: Your fired! Person 1: You're* Person 1: This is the Onosecond
By KorokDude
noun Pronunciaciation: Ounousecond Origin: "Oh no" + "Second" The second after you make a huge And embarassing mistake where ur only reaction is "oh no"
Person: "Hey siri, text my gf fuck me tomorrow my parents will be out that night" Siri: Sending: "fuck me tomorrow my parents will be out that night" to your mother --onosecond occurs here--
By Wixkslfjdkfirjeje