rat run (plural rat runs)
- (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.
rat run (third-person singular simple present rat runs, present participle rat running, simple past rat ran, past participle rat run)
Last modified on 18 June 2013, at 20:37
- (idiomatic) To drive through residential streets to avoid congestion on the main roads.