Sib

Self Improvement binge

I was going out to the old port too much, but then got tired of being pathetic, so I started a sib.

by Pahey12345 December 11, 2011

SIB

spontaneous involuntary belching

excuse me, I got that SIB.

by Crawton March 8, 2024

Sib

Sib is another word for sibling

Me and my sib went to the store

by Purr vanilla cookie October 20, 2021

sibby-sib

A nickname for a sibling.

"Meet my sibby-sib!"

by theworldofurbanwords April 11, 2025

Sib

Short for sibling. Instead of saying bro or sis to a close person/relative, you can use this gender neutral word.

My like minded friend: Hey sib, what you doing on Friday?
Me: Haha hey sib, sorry got plans!

by TheRealSlimFati August 18, 2023

SIB

Stupid Idiot Bitch

Corryna won’t get pitchers with us because she was to work tomorrow…what a SIB

by dick fingers January 15, 2023

Sib

A gender-neutral alternative shirt for “sibling” and can substitute for the words “bro” and “sis”. This term can be used with friends as well as a term of endearment.

Heyyyy sib, how’ve you been? It’s been forever!

My friend is NB so I refer to them as sib and they love it.

by LingDanc803 October 21, 2022