Sinister shell

When you eat a whole orange with its shell on, you refer to the orange as a sinister shell.

"Dude I was bored as hell and ate a sinister shell"

by ppaarrkk May 25, 2024

sinisterity

Skill in performing tasks with the hand, specifically the left hand or relating to a left handed person.
(Left-handed equivalent of dexterity)

“I love your sinisterity with chopsticks, it’s great that you can grab even the roundest cherry tomatoes.”

by verbumdirector December 26, 2024

SinisterSix

Arguably the greatest Jerkmate ranked run ever. The legendary Stillwatergooner ran the league from 18’ - 22’, tearing up anyone and any shaft in his way, until a lethal triple foreskin tear removed him from the game, it’s said he is still moving in silence and training gooners nationwide to become even a glimpse of what he once was

You never heard of the SinisterSix?

by StillWaterGooner February 6, 2025

SinisterSane

SinisterSane, the roblox audio maker. Although this name seems to be a newgens name I can guarantee you that this guy is a 2017. Exhra, the old alias of Mr. SinisterSane, is a very heart warming name that many oldgens know very well. Althought this name might sound like ehthra another audio maker I assure you that they are not related.

SinisterSane just begged for a collab!

SinisterSane got packed out of VC by Versus!

by VersusW March 4, 2025

Sinister NargaKugir

A subspecies of Nargacuga that is super tiny, thrives in the basement and has tendency for scurrying around the floor being super sinister.

Look at that small Nargacuga, must be a Sinister NargaKugir scurrying around!

by AMX ROSIE March 29, 2025

_mr_sinister_

Cavetowns mother, ultimate supreme 888 lord, and can literally murder you in three seconds by calling on the powers of dallon weekes orange bass. She is also just a real cool person uwu

Me: circling around the kit-
_mr_sinister_: KITCHEEEENNN WHYYYY HAS NOOOOTHING CH A N G E D
chat: *explodes*

by Yeetustheemo November 28, 2018

Prime Sinister

When a democratically elected Prime Minister starts to be an autocrat and a threat or a sinister for the functioning of democracy.

Declaring emergency was in Prime Sinister's agenda to curb protests.

by Lord Flavious November 23, 2021