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 29, 2009
by Kate1303 October 16, 2017
by hongjoong September 29, 2019
by harrystylesismyhusband April 08, 2020
by SwaggyDuck November 15, 2019
by 💚 Golden Girl Kay 💚 May 07, 2016