One who barrel races.

Racism expressed in the practice of social and political institutions.

(psychology) A series of uncontrollable thoughts that switch rapidly between ideas, a symptom of bipolar disorder, anxiety disorders or other mental illnesses.

Alternative form of rack one's brain

A rack in which bicycles may be parked

(idiomatic) A situation in which something must be done hurriedly, before a deadline.

plural of race car

(Australia, informal) The annual Melbourne Cup horse race.

To rat run, that is, to drive on side streets, often at high speeds, to avoid traffic.

Alternative form of rat race