Also known as nyk. The full phrase is 'Now you know better than that'. When someone says or does something so ridiculous, stupid, hilarious, or outrageous, the proper response to the situation is simple: "Now you know." nyk can be used in the place of lol for when you just don't know how to respond.
Dumb Bitch: I dropped $5 at Starbucks and $8 at Panera. The perfect breakfast!
Intelligent Person: Now you know.

Future Dropout: I totally bombed that test.
Friend: Well did you study for it.
Future Dropout: No.
Friend: Now you know.
by mintjellyfish November 11, 2011
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What you say after you have informed someone with information they did not know
"Wow I never learned that men have the same thing that's inside of a vagina is inside of our assholes in my health class." "Now you know". " why didn't they teach us that? This whole time I could been using my vagina that's in my ass".
by Thm4754574 May 14, 2016
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You use it when your friend is expressing skepticism towards some fact you've just told them, to hint that it's common knowledge and your friend is making a fool of himself by insisting to doubt it.
- "WTF" is an interjection.
- Really? I never heard of it.
- Now you know.
by Eikinkloster May 3, 2011
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The sentence used by overly dramatic/self-pitying girls with curly hair that enjoy crying in dormitory lobbies. Although meant to invoke pity, it often brings forth joyous laughter from apathetic male scholars. This sentence is also used to mock aforementioned self-pitying girls, and as such, should be inserted into normal conversation whenever possible to further malign said girl.
"Are you feeling ok, Morgan?"
"So now you care!*whimper sniffle sniffle whine*"

Guy's version:

"Hey dude. What's up?"

"UHHH... SO NOW YOU CARE???!!!"

"Oh what a hilariously everlasting joke. This will always be funny because we are men and don't cry at the drop of a hat."
by Nidamric November 20, 2006
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The sentence used by overly dramatic/self-pitying girls with curly hair that enjoy crying in dormitory lobbies. Although meant to invoke pity, it often brings forth joyous laughter from apathetic male scholars. This sentence is also used to mock aforementioned self-pitying girls, and as such, should be inserted into normal conversation whenever possible to further malign said girl.
"Are you feeling ok, Morgan?"
"So now you care!*whimper sniffle sniffle whine*"

Guy's version:

"Hey dude. What's up?"

"UHHH... SO NOW YOU CARE???!!!"

"Oh what a hilariously everlasting joke. This will always be funny because we are men and don't cry at the drop of a hat."
by Nidamric November 14, 2006
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when something ridiculously retarded occurs and the word must be said
someone: i didn't do homework
teacher: now you must die
by Addion August 30, 2017
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1. A dismissive and sometimes aggressive response to an insult, order, question, or statement. Used, to my knowledge, mainly in Central Australia. Literally means "how about you?" or "it is, in fact, you" or "how about questioning yourself instead of me, my friend, my girlfriend, my parents etc?"

2.Can also express amazement, excitement, or disbelief at an individual.

3. Can be used to aknowledge a person's presence. (often spoken very quickly)

4. Recently replaced(sometimes) with the soulja boy lyric: "YOOOUUUUUU!!!!" - accompanied with an index finger pointed at the intended person
1. "Dude you're a complete and utter fuckwit. What did you steal Sean's bottle of vodka for?" response: "You now".

2. "Hey mate I just won 4 Million dollars in the lottery!" response: "You Now!!"

3. Walkng into a party: "You now tim, you now grace, you now lachy etc."

4. "Oi man, give us a drag of your durrie" response: "YOOOUUU!!!" a la soldier boy crank that
by declanisromped April 21, 2008
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