1 definition by YSBitches4life

Top Definition
YS stands for Young Seniors and consists of teenage girls that participate in harmless acts of partying. Though many assume that YS is for young sluts the YS girls are rather prude. A YS event must consist of three or more members.
" Dude, have you heard about YS?"
" Yeah man, they party hard"

" I wanna be in YS!!"
by YSBitches4life April 05, 2011

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