When imitating scuba divers, especially "old-timey" ones, extra Z's or "izz"es get added to the middle of words. What is the origin of this?
I have heard this in a few older shows, including the original Scooby Doo series, and now most recently in How I Met Your Mother, where Barney Stinson modifies "Target Acquired" to become "Tizzarget Aquizzired", while wearing a diving suit.