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A Guillem is the most amazing boy you will ever met. He cares about his friends and family, if you know a Guillem he’ll never let you down. He will be always there for you to rely on.
Also, he is really fuckin HOT. Girls fall in love with him with just on of his looks or smiles. He knows how to flirt, but he doesn’t even need it, girls get crazy for him either way. He doesn’t like Thots, so thots, stay a few meters away from him.
He is usually very healthy and pretty tall, and most of the time he is a latino.
A really nice friend.
A few other ways to call him are:
-Guishe or Guixe
- William or Willy
- Guishermina
Remember, if you ever meet a Guillem, stay close to him, you will get lots of benefits.
Girl 1: You haven’t seen any Guillem today yet??

Girl 2: No, I am so unlucky, he is so frickin hot, i love him.
Guillem by Cackblack November 2, 2018
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To intentionally deceive your friends for no apparent reason.
Fuks, "Steph really dicked me over."

Jensen, "I think you were Guilledeced bro."
Guilledec by bushypants69 June 22, 2016

Guillemette 

Guillemettes are some of the nicest, most selfless, and empathetic girls in the world. She will always stick up for you and is loyal until the very end. When you need a shoulder to cry on, she's there. When you are laughing so hard that you might run out of air, she will be there to laugh along with you. Though all of these amazingly spectacular traits exist within her, she has a dark side too. She may not mean it, but sometimes she makes everyone around her feel invisible and insecure. She changes those around her for the better and for the worst. You are lucky and cursed to ever meet a Guillemette.
Guillemette and I are going downtown tomorrow with friends.
Guillemette by <fakesmiles> February 8, 2019

Guilliette

A girl with long blonde hair and bangs. Her friends are always saying she’s beautiful and cute, but she doesn’t ever think so. She’d loves to read, and procrastinate, being the perfectionist she is. She’s always sweet and kind and everyone would love her.
How the frick do you spell, “Guilliette”?
Guilliette by JD_Deltorio February 20, 2020

Guilmette 

It is well known that an actor of merit will often, by a certain facial expression, convey a meaning which the finest flow of language cannot express. ...
person 1..."did you go to the play? the actor was so Guilmette"

person 2..."Yeah, they blew me away! They are amazingly talented!"

Both thinking I wish I was so Guilmette
Guilmette by learned individual February 9, 2009
Man that guy is such a guillem
guillem by Happyfeet36 February 11, 2017

Guillome 

A young and lean French man. He will make ur night and day as he will fill u with beautiful kids. They are genius kids but one of them must wear glasses. He will name his children starting with the letters A and R.
“Who’s that French guy
“Mhhhhhmmmmm he looks like a Guillome”.
Guillome by AustinRoro665 October 13, 2019