Old Woman
A wave crashes into a woman, transforming her into an old woman! The wave washes away all of the woman's makeup, revealing her to be an old woman. The makeup she had on made her appear to be a much younger woman, but once the wave washed away her makeup, she was revealed for the old woman she is.
Imagine a gorgeous woman. Now see her get hit by a wave of water and turn into an old woman. The old woman could still be pretty too, she just looks way old now. Like ancient.
ば
ばあ
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In an attempt to distract you from the fact that she is actually an old woman, the old woman starts to baa (ば) and act like a sheep. The old woman goes "Baa! Baa!" and hops around on all fours like a sheep.
Imagine this old woman acting like a sheep, just saying "baa" over and over and over again. Baa! Baa! Baa!