January 15; National Bite a Sibling Day

go bite that sibling!

hey sibling *CHOMP*
ow that hurt!
hah it’s January 15; National Bite a Sibling Day

by i’m the koolest of them all January 15, 2021

National Let Your Sibling Play Video Game Day

February 4th is National Let Your Sister Play Video Games Day. Hand over the controller.

"It's February 4th you have to let me play!"
"So?"
"It's National Let Your Sibling Play Video Game Day!"

by friedchickenstick February 4, 2021

Nicaraguan Sibling Surprise

Two toddler siblings take a shared bath. While one contentedly entertains himself, the other stands up behind him and urinates on him.

I only turned my back for a second; when I turned around Manual had initiated a Nicaraguan Sibling Surprise on Isabella. She lucky that he only peed on her back.

by Crack Jacky September 2, 2009

New Sibling

when you meet someone, who you get along with great, and you find out that you have the same names. a very rare coincidence.
usually between a guy and a girl who share names, (like sam, page, eric, jordan etc...)

person 1: man i've really been enjoying talking to you, but you still haven't told me your name.
person 2: ohh its sam.
person1: MINE TOO!!
person 2: you are totally my New Sibling!!!

by justin blue cheese December 22, 2008

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

Sibling squiring

Getting your siblings to back you up in an online argument

Look at her, there's no way she would have said that. Her brother must have had her sibling squiring again.

by Nanamiraptor September 13, 2015

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 December 5, 2015