It’s a subtle line someone says to make something a sexual joke about the possible innuendo In the last thing said. Almost like a , that’s what she said, but undercover and with style.
“ Her: it’s so hard to fit in

Me: ohh ( ͡° ͜ʖ ͡°) ... but it will be

Her: Bring me an umbrella so I don’t get wet.
Me: ... hehehe .. ( ͡° ͜ʖ ͡°) oh but you will *smiling pervertedly* “
by Omni cypher July 7, 2018
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A response to a bold statement, accusation, or action; slang for "you're going to wish you hadn't said/done that," or "bitch you'll pay for that."
"Yo momma's so fat, I poked her in the belly and gravy came out."

"Oh no you DI'INT!"
by Seth Livingston June 29, 2005
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Something that's fun to say whether you really mean it or are just joking.
Tim:"hey what's going on?"
me: "oh fuck you"
by tim meh September 11, 2005
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(Pronounced: o no you dit-ten) A colloquial expression of incredulity, voiced upon witnessing another's action or statement, or hearing of it from the actor firsthand.
"Step off, bitch," said Tyrone. "Oh no you didn't!" exclaimed Shanequa.
by TopSecret September 26, 2007
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Sxc slang for the classic panto; 'Oh no you didnt' 'Oh yes I did'

Used by Skanky Hoes, Cheap Slags and Sluts

Usually followed by a 'mm-mmm' or a slight variation to this.

Also accompanied by a shaking of a finger and side-sliding the head left and right from 3-15 times in unison.

Not to be misused.
Shandice) 'Mhmm suga I just got mama some bangin new
lipgloss yall know what im say-en?'

Honey) 'Mhmm honey that gloss aint poppin m-mm no
way no how yall know what i mean girl'

Shandice)'Oh no you di'ent!'

Honey) 'M-mm thats righht suga-pie yall wouldnt know style
if it slapped yall in that cheap orange pineapple yall call a face n yall know what im talkin bout mmHMmmmm'

LOL.
by PussyPoon January 11, 2008
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This means that somebody is on the verge of anger, disgust, or surprise. They are questioning if you actually did/said that. A bystander may also say this in response to somebody who never really speaks up, and says a rude comment.
Chloe: Do you like my new outfit?
Abigail: Uh.. no. Not attractive.

Chloe: Oh no, you Didn't!
by Dude- What does dat mean? November 26, 2015
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The name of the song used in the trailer for the recently released EA game, Mercenaries 2: World in Flames.
"Oh No You Didn't
Sucker tried to play me
But you never paid me, Never"
by Vegeta Himura September 5, 2008
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