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.

Lentokonesuihkuturbiinimoottoriapumekaanikkoaliupseerioppilas

1) The longest word in Finnish made up of 61 characters, approximately meaning:
Aeroplane jet turbine motor assistant mechanic, non-commissioned officer, in training.
Hanki lentokonesuihkuturbiinimoottoriapumekaanikkoaliupseerioppilas tänne, nyt!
(Get the aeroplane jet turbine motor assistant mechanic, non-commissioned officer, in training, over here, now!)
fool, halfwit, dolt, ignoramus, imbecile, simpleton; A slur for those not as intelligent as you are—used particularly by those who are highly intelligent prodigies for those who are not.

From the movie "Little Man Tate" where Fred uses the term "Lepton" to refer to others who aren't as intelligent as he is.
"Read a book, you lepton." is borrowed from a Patton Oswalt bit.
Lepton by nimrodthesaurus June 1, 2016

beanie leptons 

produced from the weak interactive force between them and us physics students
Tay and Oscar: "we do physics"
goth beanie:"ew"
*air fills with beanie leptons*
beanie leptons by #needmeabeanie March 20, 2023
One of a group of subatomic particles including the electron and neutrino. Leptons, along with quarks, are currently thought to be the ultimate building blocks of nature.
There are six different types of quarks and six leptons.
Lepton by OneBadAsp October 22, 2006

Leptokurtic booty 

a nicely shaped booty that is fatter than normal
that girl has leptokurtic booty, nigga she got positive excess kurtosis
Leptokurtic booty by Muk$ November 16, 2011
Z particle. Smaller than protons and electrons.
Woman: What did you just call me?
Child: A Lepton
Woman: What the hell is that?
Child: You wouldn't understand.
Woman: No, speak slowly..
Child: A lepton is a Z particle.
Woman: So?
Child: Do you know what protons and electrons are?
Woman: Yeah.
Child: OK, what are they?
Woman: They're those teeny tiny things atoms are made out of.
Child: Well, leptons are even smaller.

(Shakta - Lepton Head Pt. III)
lepton by Dracus December 20, 2003
More from Urban Dictionary

proper lad 

a lad that is such a lad that he is a proper lad
person1:did you see bob
person2: ya he was a proper lad
Word of the Day on October 29, 2026
The number of years you are still sexually active
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
sexspan by Dr Kat April 21, 2022
Word of the Day on October 28, 2026
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.
You didn't get any napkins with your takeout pork fried rice? Womp womp.
womp by 175623226 November 3, 2011
Word of the Day on October 27, 2026
When your wife’s boyfriend let you sleep past 8pm 😎😎
Wife’s boyfriend: You have 5 more minutes
Me: Poggers!
Poggers by Just_Charles April 14, 2020
Word of the Day on October 26, 2026

Oblication 

A vacation, feeling more like an obligation, that involves visiting or staying with family.
So Joe where are you taking the kids for spring break vacation? We are going on an oblication to Boca to visit my mother-in-law.
Oblication by kimmerr May 5, 2011
Word of the Day on October 25, 2026

Surf Dracula Syndrome 

A phenomenon in film/television series, most notably streaming series, where the main premise is drawn out to such a point that it takes an entire season or more to get the parts of the series the audience is actually interested in seeing.

For example, if a series is titled "Surf Dracula," a majority of viewers would tune in expecting to see Dracula surfing by the first or second episode. However, the entire first season would instead be tedious padding and backstory before finally ending with Dracula surfing in the last five minutes of the season finale.
I watched "Smallville" on Netflix the other day. Dude, it was ten seasons of filler before he finally flew! Major Surf Dracula Syndrome!
Word of the Day on October 24, 2026
Load more