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

by youngersibling1111 May 4, 2010

simposter

A simp who takes a female streamer's username before she can claim it.

"That's not her. That's not her in-game nickname. So that's just a..."
"That's just a simposter!"

by Nesano September 16, 2020

Your stepsister a fister

Only to be used if brought down onto your knees by insults. Not to be used playfully. This is your stepdad a bad to the power of 10!

Cole: Your stepdad a bad
Me: Your stepsister a fister

Cole instantaneously bursts into big gay.

by LordDingus May 16, 2018

Your stepsister a fister

Not to be used playfully. Only use if someone has brought you down to your knees with insults. This is your whole family tree lGBT to the power of 10.

Cole: Your mom gay
Dylan: Your granny tranny
Yahir: Your whole family tree LGBT
Me: Your stepsister a fister

Everyone in the path of the word instantaneously falls over with big gay.

by LordDingus May 17, 2018

simposter

A common name on among us and also a slang term for a person that eats german vodka. However it could also mean crusty frog toed shrek looking pigeon.

"ugh she/he/they are such a simposter"

by i simp a lot November 13, 2020

Evil Stepsister

Verb. To fit a body part (usually a foot) into a smaller than usual piece of clothing.

When looking at a pair of shoes that is clearly too small: "I can't even evil stepsister my way into those."

by GeckoGecko August 21, 2011

Simposter

An imposter who simps for female players

"vote him out, he's the simposter"

by mememusketeer3 October 8, 2020