In Futurama, what is the significance of Nixon using the catch phrase "A-roue"?

[its keithZworld]

Is this something the real Nixon used to say? Kind of like how Palin says "maverick" from time to time lol

 

[Jaydën's ?Aunt?]

Believe it or not, darling, I found the answer!

http://theinfosphere.org/Richard_Nixon's_head

"Nixon Makes the "Aroo!" noise because he reminds Billy West of a werewolf and also his performance is partially based on the way Anthony Hopkins portrayed the man in Oliver Stone's 1995 film "Nixon"."

(((keithZworld)))