The Older Sibling Effect

Generally perpetuated by older siblings, this effect takes place when something is so hyped up or raved about by someone, that you grow to despise it.

I was going to watch Stranger Things, but John totally gave it the older sibling effect for me

by Xix August 1, 2019

May 15 - Oldest Sibling Day

I do to much shit for these children so we oldest siblings get a holiday too. Shout out to that one tweet for the idea.

Youngest sibling- "Fuck you."
Oldest Sibling- "that's rude, judging its May 15 - Oldest Sibling Day"

by yourbasicbadbitch May 14, 2020

national your little sibling sucks day

July 26th, national your little sibling sucks day. this is the one day of the year when your little sibling has to admit they suck. It's the law. they also HAVE to mean it.

My little sibling must now admit they suck because it is national your little sibling sucks day,

by Elia Al-Nims July 24, 2021

Big-little sibling

A younger sibling who displays characteristics that the oldest should possess.

I'm the youngest of my siblings, but more mature. I'm a big-little sibling.

by Kassy Kas September 10, 2022

Scare the crap out of your sibling day

October 31 is hollowenn so get something scarey on and scare the crap out of your sibling

If your an only child do what scares you before bed then go to sleep and it will be november 1st

GUY .Hey whats october 31

Other guy. holloween

guy. NOOOOOOOOOOOOOO ITS SCARE THE CRAP OUT OF YOUR SIBLING DAY ahhahahhahahahahha

by NOT AN ONLY CHILD October 31, 2019

Half Sibling

A brother or sister that have the same mama and a different daddy...

"We don't know who mama's baby daddy is, but the little bastard's gonna be my half sibling..."

by -KTG February 14, 2008

Sibling sucker

One adult child whose siblings allow, by deferment, silence, or proximity, to assume and shoulder the predominant responsibilities of caring for an aging parent.

A sibling sucker with no time to call their own, can grow to be an angry angel.

A sibling sucker is usually performing one of the most difficult and thankless jobs on the planet.

A sibling sucker spares brothers and/or sisters of their equal responsibility which might "God forbid" interrupt their busy lives.

A sibling suckercan be one whose halo has fallen a few inches to become a noose.

by Catholic Devil May 4, 2009