Sist 

The shortened version of “sister” only used by intellectuals. Much superior to whatever “sis” is.

Hey sist! What’s wit chu today?
Ugh she is being so pissy, like sist just lighten tf up!

Sist by sists4lyfe February 19, 2018

sist 

A gross bubble-like zit that usually forms when your pores are tighter than a 12 year old. It's filled with with sebum that comes from sweat that can't get out. And it really hurts.

This sist wont pop because my pores are so tight.

sist by B-hizzle April 27, 2006

sist filled cum bubble 

a cum bubble that is filled with sist.

"Bryanna always has sist filled cum bubble's "
me- "dude , whats that ..? " Bryanna - "oh i always have sist filled cum bubble's" me- "sounds painful ,and sexy in a way " ;D

sist filled cum bubble by TheAwesomest. November 15, 2011

Cyber-sist 

To assist via the internet.
Cyber-sistance, Cyber-sisted, Cyber-sister, Cyber-sisting.

I will Cyber-sist you with those documents, Carl .

Cyber-sist by Fifty cal May 7, 2021

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

Big Sisters & Big Brothers 

Organizations that pair young kids with older "brothers" & "sisters". They spend quality time together & it makes up for not having a Mom or Dad. Great for youngsters!

{Big Sisters & Big Brothers] are in practically every town & city nationwide.

Big Sisters & Big Brothers by Starchylde May 21, 2016