The mother of all negative commands and the penultimate command of non-affirmation, which being one of the oldest words of the English language, dates all the way back to Old English. It is composed of simply two letters: The fourteenth letter of the alphabet, N, and the 15th, O. In this context, it is followed by an intentional misspelling for the word that describes a party that is a second-person subject to a direct address by another party, simplified with simply the 21st letter of the English alphabet, namely U. This intentional misspelling is used to express and emphasize the how much ignorance the speaker has in correct English spelling, which is common in the modern Internet world, and therefore, this misspelling is used as a subtle tool of assimilation into the complex society of the Internet. A blank space is traditionally added between the first two letters, N and O, and the last letter, U, most likely to add a non-casual taste to the originally very casual nature of the phrase, by not sounding like a nervous first-time public speaker rushing every single word and constantly putting two words together. Put together, and you have this phrase, the penultimate counter-attack to any hater trying to roast you hard, the remedy to any insult or unpleasant remark you may receive from your "friends".
"XXX, I didn't understand the true meaning of despicable until I met you."
"No U"
by AquaHeart July 10, 2018
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Tears of joy. This emoticon is used when you see or experience something that makes you cry happily.
00: "My mom just survived her cancer surgery and they say she'll be alive and live normally again! ;u;"
by rtivey01 September 16, 2017
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Perfect Comeback to any insult. Or even sometimes, a conversation ender.
Jaimie: Your Fat
Brian: no u
Jaimie: *Freaking Dies*
by Zxturn February 26, 2020
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The only two words that are capable of ending an argument, a life or even a world war. These here words will instantly obliterate any opponent who dares to cross your mighty power. It has magical powers beyond our comprehension and it’s is believed that no u wiped out the dinosaurs. You must be careful with these words as with great power comes great responsibility.
Chad - “Bryce your grandmas dead”
Bryce - “no u”
Chads grandma:
by Master Tickles August 8, 2019
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Reflects any no u to its caster.
1: ur mom gay
2: no u
1: no no u
2: *suddenly the will to live vanishes*
by tacboss1234 April 18, 2018
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The absolute BEST fucking comeback to the any insult in the world, including "ur mom gay". The possible end to ANY conversation in the world, even if it's NOT something you can say it to. Currently, the only possible way to defeat "no u" is YFM's "UNO Reverse" song, which doesn't work if the opponent doesn't know the song; so don't take it as a complete win. Here are some possible examples:
Example 1

Bob: Hey wanna watch gay porn?
John: Bruh what? I'm not gay!
Bob: Oh sorry, forgot that ur mom's the gay one.
John: What's that even mean?
Bob: So ur mom gay.
John: no u
Bob: *fucking dies*

Example 2

Phred: Hey Phil?
Phil: Yes?
Phred: ur mom gay
Phil: no u
Phred: BAM! UNO REVERSE CARD!
Phil: Dude, I already said "no u"
Phred: Wait, you don't know the "UNO Reverse" song?
Phil: Uhh... No?
Phred: Fuck. *dies*
Phil: wtf just hap-

Example 3

Bill: Hey pal what's u-
name: lets just get it over with
Bill: Wha-
name: ur mom gay
Bill: Dude... What are you talking ab-
name: JUST SAY "NO U" YOU IDIOT
Bill: WHAT'S WRONG WITH YOU BRO?
Jack: Hey guys, ur mom gay!
name: oh i think i read the script wrong
Bill: What?
name: no u
Jack: BAM! UNO REVERSE CARD!
name: FINALLY *fucking dies*
*silence*
Bill: WHAT THE FUCK JUST HAP-
by Alloy Dreemurr November 2, 2022
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Me : ur mom gay
Bolbi B Johnson : no u
Me: me yes ?
Bolbi B Johnson : yes u
Me: no u first.
by Xiceska March 2, 2018
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