IUD SIS / SIS IUD 

This is an acronym from the Peaches Song "Fuck the Pain Away." While "SIS" probably does stand for "Stay In School" "IUD" does NOT stand for "Injustice Under Dog" as stated in the other listing for this pair of acronyms. It stands for "Intra-Uterine Device," a free form of birth control provided by Planned Parenthood. Peaches is encouraging girls to stay in school by not getting pregnant.

"IUD SIS / SIS IUD... stay in school cause it's the best."

IUD SIS / SIS IUD by morebettermostrighter January 9, 2010

IUD SIS or SIS IUD 

In the Song "F*ck the pain away" by Peaches one of the lyrics is IUD SIS then later she mentions to stay in school
the acronym siply means "Stay in School, Injustice Under Dog"

"IUD SIS, Stay in school 'Cause it's the best."
simply Backwards SIS IUD

IUD SIS or SIS IUD

IUD SIS or SIS IUD by Coco Loco Croco February 19, 2009