A vehicle lacking proper air conditioner function. Typically, a jalopy, or otherwise embarrassingly mal-conditioned vehicle. The result of riding in said vehicle is the dreaded sweatback, or sweaty back syndrome.
Bill drinks a gallon of gatorade and takes off his shirt before driving home in his sweatback.
by Jraczkow April 11, 2007
(n.)- A racist, derrogatory, offensive term used to describe of person of Mexican or El Salvadorian descent. Sweat meaning getting there back wet and sweaty working in the fields, coining the term "sweatback."
Dylan tried to shank us when we called him a sweatback.
by Maximus Bluntoff April 08, 2006