The sound of some american (and most british) english speakers pronouncing the word idea.
Written: Do you have any idea of how long it's going to take?
Heard as: Do you have any ideer of how long it's going to take?
According to Hollywood, a person wearing a white apron and glasses, who can accomplish any scientific or technological task in a relatively short period of time.
Evil leader: "Is the fusion machine ready?"
Subordinate: "Not yet sir, but we'll get more scientists and finish on schedule."