What is the origin of the word "gradoo"?

Search: gradoo; gradeau

Why: Chandler is frustrated cleaning the "gradoo" off the lid of the steamer. I have never heard that word. Maybe it's a Texas thing.

Answer: Nobody knows! For starters, it means something like accumulated "crud," "shmutz," or "cruft," which is another word I just learned (and I think sounds pretty nice).

But it might be Cajun French, and you might can spell it like gradoo or gradeau or even gradue.

Source: PATHO-L, SlangSite, Learnglish, Unwords

The More You Know: You can also spell it gunk. Or get a new lid for the steamer.