Pertaining to, speaking of, or just downright calling someone retarded or a retard. Originating and somehow managing not to venture outside of the boundaries of the Athens-Clarke County Public School System in Athens, GA, lump lump has been used for generations of students when describing special needs kids, short buses, and teachers who can't teach for shit.
by Doonshton September 06, 2006
a large vehicle, usually in the form of a bus or large van, filled with people with little brains, little age, or little drivers license and car.
by Robyn (created by beanerino, lanerz, and G-Dawg, too) September 05, 2004