sweetflakes
A combination of sweet, with flakes, as in breakfast cereal. Used as an exclamation of appreciation.
Scotty: So I was walking down the street, when I spotted something in the gutter - I bent down to have a look, and it was a Tenner!
Dean: Sweetflakes!
Scotty: I'm tellin' ya!
Dean: Sweetflakes!
Scotty: I'm tellin' ya!