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 technical term for a cat’s hairball is a “bezoar.”
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The equivalents of the English saying "That's Greek to me" are "This appears to be Spanish" (German), "This is Chinese to me" (Dutch), "It's German to me" (Philippines), "It's Hebrew" (Finnish), "It's Chinese to me" (Hebrew), "Sounds like Mars language/These are chicken intestines" (China).
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If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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The dab of toothpaste you squeeze onto your toothbrush is called a "nurdle".
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"Goodbye" came from "God bye" which came from "God be with you."
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The word "clitoris" comes from the Greek word meaning "side of a hill".
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The word "impossible" dropped in use by 50% over the course of the 20th century
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