Sinisterisity

Sinister as a noun.

They laughed at Martha's sinisterisity as she slurped her coke creepily through her straw.

by jellyfoshnoodle May 4, 2018

sinisterprototype

1. a youtuber that is badass at making little kids rage on roblox with exploits he makes

2. a guy that will whoop your fucking ass

3. the sfs king

i seen sinisterprototype do what he does best
sinisterprototype is a god
dont mess with sinisterprototype or he will get you

by Just your average internet guy October 12, 2019

Sinister

Shady ass person or action.

My man's girl was coming after me behind his back, that bitch is sinister.

by Megalosdog January 4, 2020

sinister

Something that is far too demonic, use this word to emphasize such demonic nature

That was far too sinister bro

by donthateonthearts March 22, 2020

SinisterPlayz

SinisterPlayz is a person who is evil and dark. He also likes Red color.

SinisterPlayz

by GUY FROM TWITTER January 29, 2021

Sinister gamer

Derived from shield heraldy. Sinister means from the left. A sinister gamer is a left-handed gamer.

As a sinister gamer, I tend to be more of a pc gamer than a console gamer.

by Mr. Sinister February 8, 2021

sinistergram

slang for instagram ,checking you social platform time and time again till you drop down a rabbit hole and compare yourself to sheep in robes wastein time comparing yourself to fake happiness

brb just going offline from sinistergram ....*be back in 40 days ** join me

by abigail tell a tale March 5, 2021