co-sibling-in-law

The spouse of one's spouse's sibling.

My co-sibling-in-law is a good person.

by Elivaldeq November 24, 2019

sibling foreplay

When two people act as familiar as siblings and yet the sexual tension is clearly palpable.

Quit with the ol slap and tickle this sibling foreplay is just about intolerable.

by oracle of umph October 14, 2015

C-Sibling

C-Sibling are cousin that are practically siblings. There blood related which means there family.

My C-sibling lives in a different house (C-brother/C-sister)

by Picamos November 26, 2021

Should iKON Bobby have 2 biological sibling?

Should iKON Bobby have 2 biological sibling?

Should iKON Bobby have 2 biological sibling?

by syafinaz? October 22, 2023

sibling smashed

Similar to friend zoning but with the added insult of being "family" (love you like a brother/sister).

Him: You know, I really care about you.
Her: Oh, and you know I love you like a brother.
Friend: Ouch, sibling smashed. That's gotta hurt.

by Kate Chopin April 23, 2015

Sweet Sibling Sunday (SSS)

As we all know WCW or MCM we now have SSS (Sweet Sibling Sunday). This is a day where you post your siblings high or low, goofy or not... we dedicate this day to our siblings :)

SSS to my bro bro

Sweet Sibling Sunday (SSS)😁 to my sis... I hate you

by Clingyness I diss October 18, 2020

sibling drug

A drug made from the same root thing.

Joe"He was shooting something it was probably a sibling drug of heroin"
"So it is linked to opium" Mo
Joe "Yeah it's dangerous shit

by Pendragon January 17, 2016