Short for sibling. Brother or sister, mostly for borthers.
Yo, Sib. Mom just said I'm her favorite
von daVirgo 9. Juni 2005
Four letter acronym for Strokes Imaginary Beard Slowly. Performed by placing your palm on your chin, your fingers and thumb on your face, and pulling downward until your forefinger and thumb touch, and repeat.

This action of ponderance, is often performed while considering email, blog posts, digital information, and urban dictionary submissions.

It is most often used at the end of an email, comment, or Instant message. Much like LOL, TIA, ROTFLMAO.
(In response to request for a date to the office clown via IM)

OfficeHottie: So you say I am a hottie and you want to wine and dine me, eh?
I will get back to you.

SIBS
von Esau Kessler 13. Januar 2006
short for Suck It Bitch
bob: joe you're an idiot
joe: SIB
von mTk 24. Juli 2004
Short for "stuck-in-between". An acronym for a group of mature and attractive women who are younger than than the usual age limit for a MILF, yet old enough for proper recognition.

Typical age range for a SIB is between 25 and 29, but there have been reported SIB sightings in women as old as 32.
My friends and I decided to hit up this cougar bar looking for some older women, but instead the bar was filled with SIB's.

Dude, did you just see how hot that SIB was, she was perfect!

SIB Conversation (Actual):
Young Man: Hey girls, how old are you?

Attractive Busty Woman and friend: Ummm...26?

YM: Wow that's perfect, you guys are just what we were looking for, SIBs!
von JM & VP 21. November 2010
abbreviation for siblings
I'm going to the store with my sibs today
von lionking 16. Dezember 2008
Acronym for Still In Box
Often used in regards to makeup buying/selling.
This lip gloss is SIB.
von Melodiee 8. April 2008
standard issue blonde
Driving around Brea, you would see plenty of sib's in their SUV's
von ChrisArmstrong 21. August 2005

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