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Not Sure 

From the movie, "Idiocracy". It is the name that the machine gave the main character, Private Joe Bauers when he was getting his UPC code tattooed on his arm. After that, he was called "Not Sure" throughout the movie.
Female Reporter: It started off boring and slow with Not Sure trying to bullshit everyone with a bunch of smart talk: 'Blah blah blah. You gotta believe me!' That part of the trial sucked! But then the Chief J. just went off. He said, 'Man, whatever! The guy's guilty as shit! We all know that.' And he sentenced his ass to one night of rehabilitation.

President Camacho: Number 1: We've got this guy Not Sure. Number 2: He's got a higher IQ than ANY MAN ALIVE. and Number 3: He's going to fix EVERYTHING.
Not Sure by Ingridd August 3, 2008
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Not sure if 

A popular meme, often tagged using the squinty eyed pic of Futurama Fry. Used to check if something really is x or not, in a humorously stupid way.
Not sure if trolling
Or just stupid.

Not sure if wet
Or just period.
Not sure if by Ceastra July 30, 2011

Not sure if gusta... 

the scentence is often used when you are not shure if its good to like something.
it is a more sceptical way of saying me gusta.
This icecream smells like poop.
Not sure if gusta...

not sure button

the button editors (editor) click when they are not sure whether to choose publish or do not publish.
on the definition of alaskan firedragon that was pretty vague, i had to click the not sure button.

not sure who you like

If your like me and you never had a boyfriend\girlfriend and liked so my boys\girls then you have come to the right person.So its coming to the end of the school year and you have like a lot of boys\girls and not sure who you like because you end up likeing one of them and think you like another.
"Ohh there goes Chase."

"Do I still like Max I'm kinda getting jealous seeing him talk to Katie"
Friend: "I'm not sure who you like"

not sure about that one chief 

this is a saying used when one doesn’t agree with what someone else is saying.. hense the sarcasm in the word “chief”
person 1: “you think i’m hot, don’t you?”
person 2: “errr... not sure about that one chief”

not sure what you're on 

When somebody fucking says the stupidest of stupid shit so you must think they use crack, LSD, methamphetamine, ayahuasca , marijuana or another drug
Phil: The Dallas cowboys are making the super bowl this year we Dem Boyz

De'eon: I'm not sure what you're on but I definitely want some of that because that shit you just said was fucking stupid I may need some brain bleach after hearing that
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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