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Anatoly Liberman joined MPR News' Kerri Miller to talk idioms — where they came from and what they mean.

Liberman is a professor at the University of Minnesota, where he's working on a dictionary of English idioms. He was inspired to start the project by an idiom he's never understood: "to sow wild oats." It means to be youthfully promiscuous, but Liberman wanted to know: "Why oats?"

That's the hiccup with idioms: There is almost never a clear origin. Many linguists have formulated educated guesses about different phrases, but Liberman said it's nearly impossible to know the true inspiration behind idioms.

People use idioms, Liberman said, because they enjoy colorful language, not because the idioms make sense. "You can 'kick the bucket' and 'beat around the bush,' but there is often not a bucket or a bush involved."

Liberman fielded callers' questions about idioms, many of which were real stumpers. 

"Better than a poke in the eye with a sharp stick"

 — to meditate on a serious matter in a somewhat gloomy mood

 — trying to teach someone something they are already an expert in

"Go off like a bucket of prawns in the sun

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Etymologist Anatoly Liberman says idioms developed because people love colorful language -- not because the phrases themselves always make sense.

Etymologist Liberman talked all about idioms -- what they mean and why we may never know where they come from

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