What is That's Right!?
Mating call of a Goobly Woobly. Also commonly used as a greeting or method of agreement or assertion of arrogant authority.
One day you're minding your own in your room when just outside your door you'll hear the fading sound of a passing Goobly Woobly habitually calling, "That's Right!" in a faintly Avid-Merrion-as-Michael-Jackson-esque accent.