Algo Sisters

When two women have similar enough interests or tastes that they end up on the same advertising algorithm resulting in them regularly buying matching items unbeknownst to the other

Girl, I have that same dress. SHEIN ad hit you too? I knew it. We are Algo Sisters!!!

by MIDASG April 26, 2025

Teenage Little Sister

An annoying, moody, dramatic, little baby. Usually hard to deal with. Wildly insecure, cries far too much, cares only about looks and boys. This newer version of little sister comes with some cons:
-Emotional
-Insecure about everything
-Is 'always' right in there eyes
-Thinks she is ugly although multiple boys have had crushes on her in the span of a year.

You: Hot dog! Carson's sister is sure a teenage Little sister.

Carson: what the (CENSORED) does that even mean

by Harry Tessa Tickle III December 3, 2022

sister fucker

Someone who is extremely based.

"Man, that guy is so cool. He has got to be a sister fucker."

by treehugger_ September 21, 2025

The sacred sister law

The sacred sister law states that “If you find news or information that makes you feel uncomfortable, you must share it to your sister”.

The sacred sister law: Brit and char are sisters. Brit found a video about an onion that made her feel uncomfortable. Brit shared the video to Char.

by Shhhitsbrit November 21, 2022

Satan's Sister

The maniacal mastermind who is female and more diabolical version of Satan.

Sophia is really acting like satan's sister with the way she interfered in her parents divorce.

by shaggydog123 September 7, 2021

Kissn' my sister

When you are in the shower and instead of getting out to piss, you piss in the shower causing it to go right down the drain.

Last night my wife caught me Kissn' my sister

by Bob Belchur January 13, 2022

Penis sisters

Sisters or friends that have both had sex with the same man.

Shelly and Sarah are penis sisters now that Sarah is banging John.

by Boss Panda December 28, 2021