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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
Related Words
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
lepton n. (Brit.)(slang) pl. leptons

A mythical measure of velocity used primarily to describe how fast you were travelling in a car. Typically one lepton may or may not equal 10mph or 100mph or 2.734295mph.

Used so that people can post in the public domain how fast they were going, but due to the use of the mythical unit, proof of speed for prosecution purposes is unlikely by law enforcement.
The other day I managed to drag off a Porsche, he stayed with up until about 15 leptons I began to leave him behind.
lepton by Esprit September 12, 2007
Someone who is being rude, offensive, or insulting to you. A small person
Lepton: Hey, maybe you shouldn't sing in front of people
You: (*begins crying*)
Your friend: maybe you should stop being a Lepton
Lepton by Yeper May 19, 2016

Leetoner 

Always fucks up.
Everything he touches turns to shit.
Is usually stoned.
He has a medically diagnosed micro penis.
A complete bell end.
He's fucked up again, he's done a Leetoner.
Leetoner by Gundi Gumnut October 15, 2015

Lextonian 

Someone who lives in Lexington, KY
I live in Georgetown but I wish I was a Lextonian
Lextonian by Queen._.Bee January 10, 2017
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Plate of Brown 

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Wanna go to meal hall & grab a plate of brown?
Plate of Brown by Cheddar Craigson September 18, 2020
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Larpenomics

When finance content creators rent out fancy cars and flex cash to seem richer than they really are in order to promote and sell their “get rich quick” courses.
Andrew Tate has mastered the field of larpenomics
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