Little guy: "Why does she do that?"
Me: "I think it's like those noises you make when you do karate."
My little guy wandered away and then returned to the front room with a tennis racket.
Little guy: "Pieuuuuuuuuu," as he swings a tennis racket. "I figured it out...it's a voice crack."
Hmmmmm...thinking that only applies to teenage boy tennis players who are going through puberty, but hey, who knows?
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