Yeetology 

The study of yeet. Often used to demonstrate one's knowledge of the yeet.

Guy 1: Do you know what sucks?
Guy 2: What?
Guy 1: There's no Yeetology classes in college...

Yeetology by Chance4Doom December 7, 2018

yoctophallus

penis measured in yoctometers

to see a yoctophallus, open your pants and look down

yoctophallus by lulks July 28, 2010

Yeetologist 

A professor who studies or teaches the meaning and usage of the yeet, often a self proclaimed title.

Guy 1: Can you teach me the yeet?
Guy 2: Sure, I am a professional yeetologist.

Yeetologist by Chance4Doom December 10, 2018

yoctosecond

The smallest MEASURABLE time unit known today, 1x10^(-24) seconds. Obviously, smaller units of time exist, but proper equipment and methodology for measuring them does not yet exist. Light travels 2.9979x10^(-16) meters in one yoctosecond, not the 3.33km stated above.

Learn to multiply. This isn't even an 'urban' word, so why is it defined here?

yoctosecond by iNsAniTy August 30, 2005

yoctogram 

This is what Sho Minamimoto called people in the game "The World Ends With You

Attention, all yoctograms!

yoctogram by IMMA FIRIN' MAH LAZOR!! March 14, 2009

Yecco 

She's a cute little bastard.

OMG YECCO, U SO CUTE!

Yecco by uknowhoiamfucker March 10, 2014

Yeetosphere

A realm that can only be accessed by getting yote so god damn hard that you travel faster than light itself, within this realm, one can see everything that was yoted, yote and will be yoted through all of time itself.

Person 1: bruh I just entered the yeetosphere

Person 2: what did you see man?

Person 1: I saw everything.

Person 2: huh...

Yeetosphere by why did I make this December 9, 2019