retard school 

Retard School actually an adjective rather than a noun. It is used to describe one who does something unusually retarded.

"Man, I totally forgot what eight times eight equals... I'm so retard school!"

retard school by Ralph Macchio November 5, 2004

Ritard School

It is a name you call some one who is being a dumb ass and is relatively stupid and ditsy.

Is the sky blue?
Your such a ritard school.

Ritard School by Banana Phone up the butt December 29, 2009