Annoying Step Sister 

A step sister who usually will annoy you till your dead. Usually tries to get tik toc clout. Always making fun of you and being sarcastic. She usually is the most or one of the most annoying child on your side of the family. Always makes you feel down when your having family problems. She probably came into your life when you were young. Ever since she came your life has gone on a downhill roller coaster. Usually step sisters look like clowns, most of the time without a mask. Usually your life starts up 100% and your happy in life. Then when she came in your life you feel like you lost half of yourself, so 50%. Step sisters are and will always be annoying

Annoying Step Sister: a step sister who came in your life and ruined a lot of it.

Annoying Step Sister by Annoying Step Sister March 20, 2020

National slap your sister day 

Slap your sister today!

July 24th

National Slap your sister day is today!

National slap your sister day by Himynameiskyle July 24, 2021

flying sister twister 

sex position found on page 303 in the Kamasutra. triple 69 with two sisters and a lucky guy/girl.

Me and the olsen sisters did the flying sister twister last night!

flying sister twister by zack December 2, 2004

Younger Sister Syndrome (YSS)

When the older/oldest sister of a family oftens engages in a relationship out of spite of her already engaged or further advanced younger sister. Generally moves in with her new man, gets engaged, married or pregnant all within the span of the younger's term of engagement. In the long run, not a wise decision.

Most people have witnessed at least two of these instances. General outcomes of "YSS" include but are not limited too:
1. a jailed husband (physical abuse, drugs, theft, video taping women at work, etc..)
2. A miserable 6 month marriage
3. single motherhood
4. self pity

Observer #1: "Jamie moved into her man's house, got pregnant and has quit her high paying job all since her younger sister LeAnn got engaged to her her long time boyfriend."

Observer #2: "yeah, I heard her man has a ton of great qualities like...well, umm...nevermind. At least he drives a nice truck"

Observer #1: " Another victim of the Younger Sister Syndrome (YSS)"

Younger Sister Syndrome (YSS) by it's funny...unless it's you July 12, 2008

your best friend's sister 

a stupid comeback phrase that's used for virtually everything, even if it doesn't make any sense whatsoever

Friend #1: dude! i saw your mom last night! she was hot!
Friend #2: your best friend's sister!
Friend #!: you have a sister!?

dude: what happened last night!?
dude 2: your best friend's sister!
dude: shut up!

your best friend's sister by dawg69 June 21, 2009

He's my sister 

He's my sister

You see that person? *points to a mickey mouse cheese stick* He's my sister.

He's my sister by Dankius max February 23, 2019

Fake Sister

A term often used by males to describe their relationship with a girl who is not their girlfriend, but a close friend. This term does not apply to blood-relatives.

This classification boasts qualities typically seen in brother/sister relationships (e.g., mildly derogatory dialogue, occasional use of derogatory hand gestures, random story telling and re-telling, matchmaking, inside jokes, mutual-aid and support related to interference by outside parties, and the occasional transfer of funds with no repayment plan).

Person 1: "Did you see how fat so-in-so has gotten?"
Person 2: "Hey, watch your face, that's my fake sister you're talking about."

Person 1: "So-in-so said you loaned her $200"
Person 2: "Yeah, it's ok. She's my fake sister. I'll hit her up for $400 next time."

Fake Sister by wordalicious December 8, 2010