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smack it up, flip it, rub it down 

1) A presumably advanced sexual technique refined by latter-day philosophers Bell Biv DeVoe (q.v.).

2) Also used as a taunt during competitions after a display of significant success.
1) "Move to the Jacuzzi, ooo, that booty
Smack it up, flip it, rub it down, oh no!"
~Bell Biv DeVoe

2) Player One: "I can't believe you just ran that 83 yards for a TD! WTF!?"
Player Two spikes ball: "Smack it up, flip it, rub it down, OH NO!"

Smack It Up. 

Previously thought to mean o'clockdirectly, now there are new ideas surfacing that it may well mean Acuna Matata, which we all know means Ohana, which means O'clock, which means Smack It Up.
Person:Boo hoo..im sad i lost my job/car/girlfriend/boyfriend/dog/cat/blah blah

Other Person:Well im afraid its a case of 90%Smack It Up 10%Get Over It
Smack It Up. by Rebecca Brown January 16, 2004

stick it up your sacks 

Slang telling someone to go fuck theirself.
"I don't give a fuck! Go stick it up your sacks!"
stick it up your sacks by zvahl November 23, 2016
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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