Sib is a very Big Mac fatty, she likes to eat 5 hungry jacks bqq cheese burgers an hour and complain that Indian food smells like Indians, she also likes soggy biscuits and many other soggy things
by Sib July 3, 2018
Get the Sibmug. Sib is another word for sibling
by Purr vanilla cookie October 20, 2021
Get the Sibmug. 
Short for self injurious behavior. Similar to sh (self-harm) except sib is doing something that hurts themselves, but isn't meant to inflict harm. But sh is trying to inflict harm on themselves.
Me: when I was younger I used to sib
Person: what's that?
Me: something I did to hurt myself but I didn't mean to
Person: isn't that sh?
Me: no I didn't do that until later in life, my sib was hitting my head when I didn't get my way
Person: what's that?
Me: something I did to hurt myself but I didn't mean to
Person: isn't that sh?
Me: no I didn't do that until later in life, my sib was hitting my head when I didn't get my way
by That_Trans_Guy_Denki May 18, 2022
Get the Sibmug. 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.
My friend is NB so I refer to them as sib and they love it.
by LingDanc803 October 21, 2022
Get the Sibmug. by TaiLopez'sBookshelf July 26, 2016
Get the SIBmug.