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You and I both know 

This is a phrase used to give self assurance and confidence. It actually means "I know"
You and I both know that Cindy doesn't sleep around.

You and I both know the builders will be finished next week.

The check is in the post- you and I both know that

You and I Are Tight 

A hand sign for friends.

Place your thumb against the palm of your hand, then cross your middle and ring finger. The pinky finger represents the word 'you', the index finger represents the words 'and I', and the crossed middle / ring fingers represent the words 'are tight'.

Now, with your other hand, point to your pinky, index, and crossed middle / ring fingers, respectively. "You and I are tight".

*special thanks to Justin for this one <3*
Dude 1: Are we really best friends?
Dude 2: Are you kidding?? *makes hand symbol* You and I are tight!
You and I Are Tight by _allismine_ December 20, 2006

You and I Collide 

Me and my womans scent when making love
I love the smell of you and I Collide
You and I Collide by Spyderwear August 23, 2022

fuck you and I hope your dog dies 

Used when "fuck you" just isn't quite enough.
Fuck you. Fuck you and I hope your dog dies.

Between You and I 

A phrase that incorretly replaces "me" with "I." As many English speakers are ignorant of their own language, the speakers have trouble with the usage of "me" and "I."

This phrase is typically said by those trying to act smarter than they actually are. They believe that the rest of the world says the phrase "between you and me" incorrectly and are trying to show off their smart ass. However, they are just idiots.
Presenter: Blah blah blah blah blah blah blah blah....

Guy 1: (To Guy 2, in a whisper) Between you and I, this guy is boring.

Guy 2: And you are trying to be a smartass, but failing. That makes it worse.
Between You and I by Dakarai007 March 22, 2011

under the sky in room 553 I discover you and I 

best story ever watch out for paper hearts and the time 5:53 though someone also needs to tell yeonjun to stay away from fires bestie really said 🔥 🏃 ♂️ anyways you should really read it
Person 1: under the sky in room 553 I discover you and I had my crying myself to sleep
Person 2: #relatable
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
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