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Mack-attack 

One who is very deliberate when flirting.
"That girl is hot but so out of your league.. you should try to get her number."
"Watch and learn, I'm about to give her the Mack-attack..there's no way she'll say no."
Mack-attack by Shhmegs November 16, 2012

Macattack 

The compulsive consumption of 3 or more McDonalds Big Macs in one sitting.
1. I had a Macattack on the way home after the football game.

2. We went to McDonalds and Nick had a total Macattack.
Macattack by Jack Bauer. November 24, 2009

gackattack 

A gackattack is when an individual who has consumed stimulants such as XTC, MDMA or speed is so affected by these drugs that they lose their shit. During a gack attack, one often does not have control of many muscle functions. Sweating tends to increase dramatically along with body temperature. A persons pupils are very large. A gackattack also directly influences ones brain and their thoughts are merely the beat of the music. Gackattacks are beautiful experiences if you love to doof, doof.
Guges: Oi cunt, last night I dropped 4 pills and I full gackattacked, it just hit me so fucking hard.
Darren: Thats fucking sick! Wish I was that gacked myself.
gackattack by ChiefKeefGUnit February 20, 2017

Mattattack 

When someone constantly sleeps over after sex. Refering to 'Matt' which means 'Eternal Sex God'.
Cindy: Bobby and I had sex last night, but I didn't get any sleep again because he sleptover.

Loucy: Oh God, Bobby needs to stop Mattattacking.
Mattattack by ZOMG101 November 5, 2009

The Mackalack 

When a man pisses on a girl's chest, carefully sprinkles poprocks on her breasts, then violently titty-fucks her.
"Oh man, I'm so sore. I totally used the mackalack on that girl I met last night."
The Mackalack by Lollygator January 27, 2009

Mack attack 

A "Mack attack" is when Joe "Brandon" Biden pops-off.

The theory goes that he has two split personalities: Jack (cringe) and Mack (based). When Mack takes over, he says stuff like "c'mon Jack!" When Jack takes over, he's sleepy Joe.
"Hey, did you see the White House press conference where a reporter asked a dumb question and Biden just shot them down with a 'No. Next question?'"
"Yeah! Mack attack! Pretty alpha."
Mack attack by Urbanscholar834 April 6, 2022
More from Urban Dictionary
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
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
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