sisce 

Something that is extremely advantageous to you

"Bro what did you do last night?"
"I got so drunk and hooked up with 12 girls"

"Damn bro that's a sisce"

sisce by Cumslutunited April 12, 2017

Plump Sister 

A woman who has put on a few pounds since the last time that a random 72 year old Uncle will say to Larry, the cousin twice removed, this kind of thing:

Uncle: "Golly! That's Suzanne? She has gotten to be a real Plump Sister since the last time I saw her."
Larry: "Must've been back in the Seventies. Before the kid. Kids. Who knows."

Uncle: "It was May 1979. When they got married...wow she just blimped out!" Larry: "Total butterball. Plump Sister, shame."

Plump Sister by MissPriss9 January 12, 2019

Sister X 

The sister with the most not-relative-siblings in Vietnam.

- Do you know sister X?
- Of course, she's the one with the most siblings in Vietnam.

Sister X by Bé Iu Của Chị X April 23, 2021

Time To Chuck My Muck Over Your Sister's Jubblies 

A politer way of saying to a friend, i'm going to fuck your sister then sloppy jizz over her tits

Dave: Bobby, since you wouldn't make me a brew its Time To Chuck My Muck Over Your Sister's Jubblies

Time To Chuck My Muck Over Your Sister's Jubblies by Greg_the_Smeg February 7, 2019

Sinceriously 

1. The ability to speak freely, openly and honestly about anything; if you're going to say something, say it sinceriously.

2. To initiate any action while spreading as much good karma as possible.

When I say this I say it sinceriously.

I'm going to sinceriously raise as much money for charity as possible.

Sinceriously by Gingey87 January 17, 2015

The Diary of Princess Pushy’s Sister 

The supposedly long awaited (and self published) memoire of Samantha Markle wherein she promised to ‘spill the tea’ on Meghan Markle, The Duchess of Sussex, but as usual failed to deliver.

Wow The Diary of Princess Pushy’s Sister was so bad Sam couldn’t give it away for free!

The Diary of Princess Pushy’s Sister by Blood Sister October 6, 2023

sister zoned 

When a guy/ girl you like says "you are like my sister" or "you are like the little sister I've never had" or "I love you like a sis" It is worse than being friend zoned, it's all the way past friends to family. You probably have a 2% chance of getting out of the sister zone and having a relationship with that person.

I thought we were on a date, but he sister zoned me twice. I guess we were just hanging out.

sister zoned by Queen B, Bitch! June 5, 2015