hiddey ho
Also known as hidey ho, a greeting used in pop culture, speculation has it that The Simpsons creator Matt Groening or one of the screenwriters were inspired to use the saying in the show from the line 'Hidey Hidey Hidey Ho' from Cab Calloway's "Minnie the Moocher," a line catchy enough for Ned Flanders, ever geekily trying to be cool, to have made his in-character saying out of it, which in turn may be a play on the 'Hi ho, hi ho' said by the marching dwarves in Disney's animated film Snow White and the Seven Dwarves.
Hiddey ho! How's it going?
What did you just say?
What did you just say?