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Au-Sin

The biological cousin that moreso performs or holds the role of an Aunt than a cousin to you.

Comes from the blending of Aunt + Cousin (Au from Aunt + Sin from Cousin)

Originates from the Midwest USA in 2020.
Hey, my Au-Sin is going to drop us off at the salon. Who? My cousin, but she's old enough to be my Aunt.
by Missing Apples 24 April 2, 2023
mugGet the Au-Sinmug.

sin(x)

person 1:i graphed sin(x)
person 2:cool
by real human totally January 21, 2024
mugGet the sin(x)mug.

Sin Shower

Not referring to an actual shower, "Sin Shower" is actually a term of endearment used for friend rituals. Such as when everyone is drunk as fuck or some idiots decide to hot box a tent their friend's parents need to use the next day.
Person A: "Dude, what happened yesterday?"
Person B: "It was one hell of a Sin Shower"

OR

Person A: "You know... I love you guys" *cries like a little bitch*
Person B: "Friends that Sin Shower together, stay together"
Karl: "Wtf is a Sin Shower"
Person B: "STFU KARL"
by GROOnpa January 12, 2022
mugGet the Sin Showermug.

sin siang

An asian male name used for a wonderful person who always thinks of others before doing something. Sin Siang is handsome, kind and caring but knows to differentiate his friends from his foes. He works hard and is determined to succeed in life. He is very fillial to his parents and takes very good care of them. He also loves his girlfriend very much and his girlfriend knows it. He always tries his best to make his loved ones happy and balance his worklife at the same time. However, his loved ones worry that he overworks and tries to tell him to take it easy but he doesn't listen most times because he thinks that he's not doing enough and apologises too much sometimes. Sin siang is also a very lovable person and many people like him even if they only knew him for a short time.
Me: Is that Sin Siang?
Friend: He's so handsome OMG
by 4_2_0michael69 November 22, 2021
mugGet the sin siangmug.

Sin Child

The aftermath of having unmatrimonial sex. If two people decide to have sexual intercourse without getting married, and the female becomes pregnant, the child would be called a "Sin Child" or at older times would be called a "Bastard".
Person #1: Did you see Yasmine's daughter today?

Person #2: yeah

Person #3: Yasmine? Her parents aren't married, she must be a sin child!
by Latifah January 4, 2017
mugGet the Sin Childmug.

sin

When two human beings (same/different sex) have a child.
Jenna: My mom is having a baby!!!
Ria: omg another sin
Jenna: Stfu hoe
by SINVIA_is_an_idiot_onTwitter December 28, 2021
mugGet the sinmug.

El sin nombre

A man with a little dick severely retarded and likes to stick thi gs up his butt
That guy's full on el sin nombre
by Obsford October 13, 2025
mugGet the El sin nombremug.

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