Definition of rat racing in English:

rat racing

noun

  • The action or practice of engaging in a rat race; specifically (a) The racing of rats; (b) The racing of cars, planes, etc., competitively or erratically and at high speed; (c) The action, process, or experience of working in a competitive urban environment.

Origin

Early 20th century; earliest use found in Eden Phillpotts (1862–1960), writer. From rat race + -ing. In later use probably partly also from rat-race + -ing.

Pronunciation

rat racing

/ˈrat ˌreɪsɪŋ/