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Blank Out 

Verb.

A state of mind which one will hear and live a conversation but will not retain any information therefore leaving them in a state in which they are left drawing a blank.
Man 1: Dude, We gotta see that new movie, it looks sick
Man 2: Yeah man, fo' sho'
Man 1: Cool, so when we gonna go see it?
Man 2: See what now?
Man 1: Did you just Blank Out?
Blank Out by Cory Lavery January 23, 2010

blend out 

Opposite of "blend in." To use a crowd to one's advantage in escaping undesirable situations.
Oh Jesus, I don't want to clean up after this party. Let's blend out while everybody else is doing karaoke.
blend out by Puff Cat December 21, 2014

Blond Out 

Getting a stupid person to enter a blind panic. Particularly rewarding when they've been a little bit too cocky and they suddenly realise that they are in fact totally stupid. The person doen't have to be blond but it helps.
He thought he was really clever by forwarding the e mail to his supplier. He had a total Blond Out when he realised the mistake he had made.

Casa-Blank-Out 

When one tries to be suave and quote a movie line, and then can not remember which movie the quote came from - and ends up looking like a dumb-ass.
Super hot chick you're trying to impress: "Ok, so see you later then"
You (fumbling for something cool to say): "Don't worry, We'll always have Paris"
Super Hot Chick: "Um, is that from a movie or something"
You: "I can't remember!"
Super Hot Chick: "You just had a Casa-Blank-Out, dumb ass!"

blank the shit out of blank 

When you really did something well or something was done well to you. Also if you did something really bad or something bad was done to you.
Blank the shit out of blank can be just about anything. When you saw "I ate the shit out of that sandwhich" "I saw the shit out of that movie" "She eye fucked the shit out of me" Millions of combinations. I started using this saying in 2002 and I'm not sure where it came from, but its wonderful.

out of the band 

A term used by nerds. "You are out of the band" is used to make fun of a person even though there is no actual band to be kicked out of.
richard: tony, your out of the band

tony: What band?

richard: The band
out of the band by lordethal April 10, 2007
More from Urban Dictionary
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
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
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