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The meaning and origin of the expression: As different as chalk and cheese

As different as chalk and cheese

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What's the meaning of the phrase 'As different as chalk and cheese'?

Two things that are very different from each other.

What's the origin of the phrase 'As different as chalk and cheese'?

We have hundreds of phrases to indicate the similarity of one thing with another and similes like 'as alike as two peas in a pod' are commonplace in everyday speech. There are far fewer expressions that explicitly refer to the difference between things; 'as different as chalk and cheese' is the most commonly used. This is an old expression and the earliest citation is in John Gower's Middle English text Confessio Amantis, 1390:

Lo, how they feignen chalk for chese.

Tourist boards in several of the chalkland areas of the UK try to place the phrase's origin in their locality and allude to vague connections between chalk and the local cheese. None of these is convincing and they clearly owe more to marketing than to etymology. So, how did the phrase come about?

There must have been a time in the development of English when we had no standard phrase to express the idea that two things were 'as different as X and Y'. When someone coined such a phrase, and that someone may well have been Gower in 1390, clearly he needed candidates for the roles of X and Y. That doesn't sound difficult, after all most things are different from most other things.

"Maybe, 'as different as a cormorant and a lamp-post'", thinks our coiner, "or 'as different as floorboards and greengrocers'". "No, 'as different as chalk and cheese' sounds better". Why? For no better reason that the fact the 'chalk' and 'cheese' are short and snappy words that alliterate. The English language is packed full of phrases that contain pairs of rhyming or alliterating words - often just because the person who coined them liked the sound of them; for example, hocus-pocusthe bee's kneesriff-raff etc.

Chalk and talkA modern-day spin-off of 'chalk and cheese' is 'chalk and talk'. This refers to the traditional teaching method where the teacher stood at the front to address the class while writing on the blackboard with a stick of chalk (which those of a certain age will well remember). The phrase emerged in the UK in the 1930s but had a shortish run as a widely used expression as classrooms began to be equipped with whiteboards in the 1960s. 'Dry-wipe marker pen and talk' never caught on.

Gary Martin - the author of the phrases.org.uk website.

By Gary Martin

Gary Martin is a writer and researcher on the origins of phrases and the creator of the Phrase Finder website. Over the past 26 years more than 700 million of his pages have been downloaded by readers. He is one of the most popular and trusted sources of information on phrases and idioms.

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