sinisis

A bad woman who destroys the men she dates.

My ex girlfriend is a sinisis.

sinisis by sinisis August 7, 2015

sinisis

An evil, manipulative woman who brings "mass destruction" to the men that she dates.

"Do you still have feeling for your ex?" "Nah, shorty's sinisis af, & took me through hell! I'm glad she's gone."

sinisis by sinisis August 6, 2015

Sinisister 

A rotten older sister.

Person 1: My older sister made fun of me today
Person 2: Well what do you expect she's a sinisister

Sinisister by youngersibling1111 May 4, 2010

Sinising 

Verb, English,
1.To shit on someones face with rage, coined after I decided that Gary Sinise's acting was so bad, that I wanted to shit on his face with rage.

This guy was so annoying I just wanted to Sinise him so bad.
Yea he really deserves a good Sinising.

Sinising by Dyno114104 November 2, 2010

sinisiaq 

Someone who will grow up to be shit at everything

She's going to be a sinisiaq

sinisiaq by Sinflowerhihi January 17, 2017

SISISISIS 

Why the heck are you searching random things on urban dictionary

Person 1- hey I searched something in Urban Dictionary!
Person 2- Oh what is it?
Person 1- SISISISIS

SISISISIS by CoolButNiceButStupidlolololol January 26, 2022

Sinisse 

A beautiful girl but doesn’t think that she is she’s short but tall at the same time she’s funny has some what of a big booty she’s kind but mean most of the time because of hows she’s been treated in the past she don’t take shit from nobody she’s athletic got some thic thys she doesn’t fall for anyone of trust anyone she takes her time in letting someone date her or be her friend she’ll beat a bitch up any day.

Sinisse is so pretty

Sinisse by :/; June 15, 2024