this post was submitted on 23 Dec 2023
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[–] Peppycito 7 points 8 months ago

A telltale comes from sailing. They're little bits of yarn attached to the sail. They let you see what the wind is doing. The wind being invisible, a telltale shows you what you can't normally see. In nonsailing use, a telltale is a small thing that shows you the whole truth.