semi sibling

For children growing up in spilt families, When a parent remarries and has further children they are half brothers and sister.
When the parent who has left then has children the two young half siblings are unrelated. these are semi siblings.

Your parents first spouse's children. usually the half siblings of your half siblings.

My sister's Father's daughter is my semi sister.

My Brother's mother's son is me semi brother

They are both my semi siblings

by Toyotarox October 3, 2009

Middle Sibling

The forgotten being known to be made before the Younger Sibling and after the Older Sibling. this being is either to young or old to do things the the younger sibling or older sibling desire. yet many middle sibling are known to be depressed or forced to do the older sibling and younger sibling's chores.

Never forget the middle sibling

by BlainaCipher May 30, 2019

sibling hate sunday

Like man crush Monday or women crush Wednesday except for siblings, meant more as a joke because you should love your siblings, or just not hate them

Hey bro your my sibling hate Sunday (shs)

by Sam-nugget June 27, 2017

shibli khan

An good looking person.

You are the shibli khan of this universe.

by Ayushi Pal December 22, 2018

sibling second

A non gender specific synonym for the popular expression "bruh moment".

Person 1: Dude! What a bruh moment!
Person 2: Hey man, we don't discriminate in this household.
Person 1: Oh sorry, I meant to say sibling second.

by some_idiot_called_jay April 14, 2019

Slippery Siblings

When a male and female have slept with the same female.

Person 1: Did you hear Halee and Louie both hooked up with Chrissy?
Person 2: Yea, they are defintley slippery siblings!

by DontAskDanny October 26, 2020

Sugar Sibling

Two or more people who shares the same sugar daddy.

: Have you heard? Jennifer's sugar daddy is Jonathan.

: Jonathan? He's also my sugar dadd-
: Oh... so y'all's are sugar siblings. Got it.

by jaruldojacouch October 21, 2021