Definition of roo rat in English:

roo rat

(also 'roo rat)

noun

  • 1Australian. A rat kangaroo (family Potoroidae). Compare "kangaroo-rat". rare.

  • 2US= "kangaroo-rat".

Origin

1940s; earliest use found in Ion Llewellyn Idriess (1890–1979). From roo + rat, after kangaroo-rat.

Pronunciation

roo rat

/ˈruː rat/