Smister

An affectionate nickname for my sister

I love my smister.

My smister is the best.

by >^..^< May 5, 2009

sinister sipper

Someone who commonly sips from a straw, often protruding from a beverage of various liquids.

One who sips sinisterly is considered extremely dangerous, take caution when approaching one in the wild.

man 1: dude, what is that thing?
man 2: i don't know, it looks pretty sinister
man 1: what is it sipping?!?
man 2: oh my word, it's a sinister sipper! run!!

by thesipper12345 September 2, 2012

Sinister Behaviour

When someone has terrible behaviour and is acting like a complete menace.

If you keep up this sinister behaviour, you won’t get the privilege of playing Roblox

by MasterOfTaints May 10, 2023

gary shmister

The main character. The dude you strive to be. If you with a Gary shmister you know it’s going to be a good night. He is the god amongst the NPCs.

Guy- dude last night was a movie!
Guy2- I know I’m so glad we met Gary Shmister he was getting it done.

by Niko the racist May 28, 2021

Bend Sinister

A heraldic convention (a line moving from bottom left to upper right corner) that illustrated bastardy. "Illegitimate" heirs could display their father's crest (like "legitimate" ones) but with an appended "bend sinister."

The "bend sinister" shown in the photo indicates that the bearer of this crest was a bastard of Lord Kent.

by BraniacBoy September 20, 2009

SinisterCreature

The smartest and best user you'll ever meet. He's so hard that chinks be sending off replacements before he even asks them. Ref god as well as se'ing oc.

No way it's Sinister!! We need to give him our crap before it's too late!
SinisterCreature is my role model..
Wish I was like 'SinisterCreature'.

by EliteUser123222 October 17, 2019

sinister D

A situation where a smallish, dried out, extraordinarily tenacious remnant of fecal matter which, when unwittingly rolled into a mixture with toilet paper lint by the action of wiping, becomes almost irremovably entangled among ones anal hair, which in turn causes what one can only refer to as a net of hair that blocks the passage of poop from anus to toilet, leaving a heaping mound of poop suspended in "hair net", making for a very messy situation.

Damn Tyler, I know you called the bathroom right after I pooped, but it was a must that I shower immediately after running into a Sinister D. Hopefully I won't shower shart while I'm in there and prolong the process.

-See shower shart

by Sinister D March 16, 2009