(idiomatic, colloquial, US) An old, unattractive automobile, purchased for little money, to be driven during brutal Great Lakes winters while the owner's "good" car remains garaged and protected from corrosive road salt for the season.

(Britain, colloquial, mildly vulgar) Extremely drunk.

A New World rat of the genus Oryzomys, having an exceptionally long tail.

(colloquial) A person who spends an unusually large amount of time at a gym.

A gerbil (subfamily Gerbillinae) of the deserts of Africa and Asia / A kangaroo rat (genus Dipodomys) from North America / A Natal multimammate mouse (Mastomys natalensis) from Africa

(informal) A soldier trained to enter enclosed enemy spaces like tunnel systems to search them and eliminate and/or capture any occupants.

(slang) person who lives and exhibits attitudes of inner city life. usually a negative connotation that implies poor upbringing, bad manners, little to no education and low class behavior

(idiomatic) A small, usually minor road used by a significant amount of traffic as a short cut or to avoid congestion on more major routes.

(idiomatic) To drive through residential streets to avoid congestion on the main roads.

The brown rat.