Switching letters is called spoonerism. For example, saying "jag of Flapan", instead of "flag of Japan".
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The technical term for a cat’s hairball is a “bezoar.”
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"Stewardesses" is the longest word that is typed with only the left hand.
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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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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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Shakespeare invented over 1,700 words that we use today.
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The word "listen" contains the same letters as "silent."
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