The P.S. at the end of a letter stands for Post Script.
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'⸮' is a punctuation mark that was first proposed in the 1580s to denote sarcasm or irony.
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A “butt” was a Medieval unit of measure for wine. Technically, a 'buttload' of wine is about 475 liters, or 126 gallons.
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The dab of toothpaste you squeeze onto your toothbrush is called a "nurdle".
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English sailors were referred to as "limeys" because sailors added lime juice to their diet to combat scurvy.
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The word "impossible" dropped in use by 50% over the course of the 20th century
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