Yatsen 

(n) Slang for a person with a shlongle dongle(dick) the size of a whale

"damn, they gotta be a Yatsen with all that meat."
"Yeah bro, no other explanation"

Yatsen by FlubinDubin September 1, 2022

Sergei Yatzenko

A poor man who was brutally tortured and murdered at the age of 45 by the Dnepropetrovsk Maniacs, as they recorded him suffer (a viral video known under the name of 3 guys 1 hammer)

Important warning: DO NOT EVER WATCH THAT VIDEO. DO TELL ANYONE TO WATCH IT. It will completely traumatize you/them for the rest of your/their existance. I didn't watch it myself, but I heard about it, and trust me, it is shock and gore at its purest form.

Person 1: Man, ya seen what happened to that guy named Sergei Yatzenko ?
Person 2: I pray for him every day, bro...

Sergei Yatzenko by JuztSumGuy May 10, 2015

Yasent 

A extrememtly clever, mathematically minded young man who is also equally sensitive and thoughtul often going to great lengths to please others and ensure their happiness.

Of course he'll help out, he's such a Yasent.

Yasent by akma February 3, 2010

Yasenia 

Yasenia s a very sweet and nice girl. She can be shy and a bit awkward sometimes but once you get to know her, she can be a very funny and caring person. She loves to give hugs and she loves to listen to music. She has a very sweet voice and she loves to sing, draw, and play the drums. She likes to organize certain things and make things as perfect as possible. She is such a good friend and can be just like a sister. Yasenia has beautiful wavy brown hair and pretty chocolate brown eyes. She is adorable and has cute chubby cheeks. She is a very cool and loveable person.

person #1: She's so cute!
Person #2: I love her voice!!!
Person #3: Yasenia is really funny!

Yasenia by KateTheReaper June 30, 2016

Yassen Gregorovich 

A Russian assassin in Anthony Horowitz's Alex Rider series. Not that we like to think of him as an antagonist *shrugs* He agrees with the main protagonist, Alex Rider, that he should live a normal life outside of the espionage world(which sadly never happened because the series is a spy thriller). He's hot with chiseled lips and a dancer's body. He's dead.

Person A: omg Yassen Gregorovich is so hot!
Person B: he's literally an assassin!

Yassen Gregorovich by RhymesWithAssassin February 2, 2023

Yasen 

A person with a haircut that defies the laws of physics. Has a friend who gets turned on by horses and snakes and there is a girl who "compliments" his handwriting.

Person 1: That guy has some weird friends.
Person 2: He's probably a Yasen.
Person 1: True, True.

Yasen by Yakou September 15, 2021

Yassen 

hey, yassen is not that bad. he's not annoying you are just used to people not talking to you. Yassen just wants to be funny and be by your side at all times! you stinkapoopoo.

Guy 1: hey you know yassen? he sucks
Guy 2: No. You stinkapoopoo

Yassen by Big boy mask September 30, 2019