an event that occurs which essentially ruins the rest of the night, but it never brings the night to an end it just results in a night full of regrets

something that seems like a good decision at the time but looking back on it you ask yourself, what was running through my head that night?
OMG that shot is going to be the nightbreaker
by raphael pettigreu August 5, 2009
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Noun: something that a person does to bring on humiliation, embarrassment and social awkwardness. This action or communication usually causes others around to laugh at that person.
Pablo: Take a shot of this.

John: (takes the shot, slams shot glass on the table). WOOOO!

Jennifer: (laughing at John's awkward exclamation). That was the nightbreaker!

John is now embarrassed.
by Regan San August 6, 2009
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noun: a thing or event that transforms the night from a mediocre time to an awesome ripper.
"Dude take that shot of SoCo...its the nightbreaker!"
by vinnydoeshaka9 August 5, 2009
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A name, stemming from an ill-fated fictional character, lent to any of a number of personality types, including self serving, nancy-boy, parasol carrying goth wannabes, dickheads, morons, douche-bags, imbeciles, and generally any one person who causes extremely forceful instances of anger, fear, hatred, annoyance, or pure, soul-seething hatred at the mere mention of their name. Also; one whose name inspires fear of subsequent appearance. An immense cock, seeming to be brazenly insensitive about the problems of people around him. In actuality, he is too moronic to see past himself and his magic marker-drawn wrist scars
"Look at that Twi-Tard, he's a total Nightbreak"

Person 1: "Remember Nightbreak?"

Person 2: "Shhh! Do you want him to show up?!"
by grimsmote June 14, 2011
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