an acronym created by two teenage girls. originally named to mean "Spoiled Brat", but now can mean anything from "Splattered Brains" to "Shitty Bitch" to "Shi Bal". Refers to a certain girl whose initials are A.M.K, but can be used by anyone to name any similar poser-like bitch.
"There was that one time when SB dragged me on a date with her fat boyfriend and lied to her mom that I was with my 'boyfriend' too, OTL.
by herebutGONE December 28, 2009

by Kate1303 October 16, 2017

by hongjoong September 29, 2019

by harrystylesismyhusband April 08, 2020

by SwaggyDuck November 14, 2019

by 💚 Golden Girl Kay 💚 May 14, 2016
