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Man-on-Man-Splaining 

When you've run out of women to mansplain to, so you resort to men instead.
"Did you happen to attend last night's amateur radio club meeting?" "Yes, a lot of man-on-man-splaining."
Man-on-Man-Splaining by addat November 13, 2023

Man-on-mansplaining 

the explanation of something by a man, to another man who they perceive as their inferior, in a manner regarded as condescending or patronizing.
There was a lot of man-on-mansplaining in the office today between Bert and Matt.
Man-on-mansplaining by Fz9g3z September 10, 2019

First Man On The Moon

On July 21, 1969, with the Apollo 11 Spaceflight, Neil Armstrong was the 1st human to step on the Moon! Buzz Aldrin joined him 20 minutes later & they spent 2 1/4th hours gathering 47.5 pounds of lunar material for return to Earth. Pilot Michael Collins stayed in lunar orbit until they returned to the ship. July 24th was splashdown at 819 miles SW of Hawaii. As Neil Armstrong took his 1st step onto the surface of the Moon, he said "1 small step by a man; 1 giant leap for mankind."
I was fortunate to see the live TV broadcast of the First Man On The Moon & it had tremendous impact on me, starting a lifelong love of space & the Moon.

The Tallest Man on Earth 

Is the moniker of Swedish folk singer/songwriter Kristian Matsson. The Tallest Man on Earth is awesome. He claims to have been born in Sweden but is likely to have been born on whatever planet Bob Dylan and Nick Drake hailed from.

As of 2010 he has 2 full length albums and 2 EPs.
What is the best song ever?

King of Spain by the Tallest Man on Earth

big man on campus 

A guy in college with connections. The Big Man on Campus (or BMOC) knows people. He's privy to the locations of the best parties, the coolest hangout spots, and the loosest women. The term isn't used as much anymore due to the advent of internet social networking, allowing everyone to "know people"; but still, being a BMOC takes skill in real-world networking. BMOC's aren't always douchebags, but may have a slightly more inflated ego than most.
BMOC: "Ok, guys, I got us all invited to this sorority party tonight, and I know a liquor store we can stop at that doesn't card."

Other guy: "Whoa, check out the Big Man on Campus! Awesome, dude!"
big man on campus by AR-558 March 16, 2013

A Man On The Inside 

A Phrase Used To Express That AnInformer Is Giving Up Privy Information.
Detective: At Exactly 3 P.M. I Want Everyone At That Warehouse.We're Gonna Catch Them With That Shipment For Sure.

Policeman: How Can You Be So Sure?

Detective: 'Cause I've Got A Man On The Inside.
A Man On The Inside by DGringo October 1, 2009
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
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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