Skip to main content
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.

pentagonal princesses

5 extremely sexual human beings who all follow their overlord mackenna. They all sit at an extemely exclusive lunch table and talk major shit. They can nae nae better than anyone and have all the guys at ther feet.
Guy: wow those girls are so good at doing the nae nae!! Who are they

Other guy: thats the PENTAGONAL PRINCESSES

Pentagonal 

When the Pentagonals are pentagular
Wow thats alot of Pentagons in my math equation!
Guess u can say... It's some sort of Pentagonal Theorem...
Pentagonal by Pentagonal April 28, 2025

Gyroelongated pentagonal cupolarotunda 

In geometry, the gyroelongated pentagonal cupolarotunda is one of the Johnson solids (J47). As the name suggests, it can be constructed by gyroelongating a pentagonal cupolarotunda (J32 or J33) by inserting a decagonal antiprism between its two halves.*

*Information copied from the Wikipedia page
Friend 1: Yo, dude! I'm collecting 3D shapes for decor in my house. Any suggestions?
Friend 2: You should buy a gyroelongated pentagonal cupolarotunda.
Friend 1: What the hell is that??
More from Urban Dictionary
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
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026

Respectfully 

Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.

After school, The Modells on Jamaica Ave was active. Respectfully.
Respectfully by john quan the first December 20, 2020
Word of the Day on September 26, 2026

You met me at a very Chinese time in my life

A moment in time where you feel distinctly Chinese over all other things.
Dante: "I wish I could be Nigerian, but I can't because I'm Chinese. You met me at a very Chinese time in my life."
Word of the Day on September 25, 2026
Load more