To be experienced in or knowledgeable about a subject. What's the origin of the phrase 'Know your onions'? The English grammarian and lexicographer C. T. (Charles Talbut) Onions was an editor of the Oxford English Dictionary from 1895 and continued to write reference works throughout a long and distinguished career.

2013年5月30日 · 1920s America was a breeding ground for wacky phrases (see the bee's knees) and know your onions is just another of those. It's worth visiting The Phrase Finder to read the full explanation, which includes a link to other phrases that were coined in the USA.

If you know your onions, you know a lot about a particular subject. She really knows her onions in the historical field. Note: This may derive from the rhyming slang `onion rings', meaning `things'.

2017年10月9日 · The phrase to know one’s onions means to be very knowledgeable about something. It originated in American English in the late 19th century with onion in the singular. The earliest instance that I have found is from The Philadelphia Inquirer (Philadelphia, Pennsylvania) of Wednesday 15th June 1898:

2021年8月2日 · Q: I know the onion has many layers, but how did it get into the phrase “know your onions”? A: The expression “know one’s onions,” meaning to be very knowledgeable or experienced about something, showed up in American English in the early 20th century.

KNOW YOUR ONIONS definition: to know a great deal about a particular subject | Meaning, pronunciation, translations and examples

If you know your onions, you know a lot about a particular subject. She really knows her onions in the historical field. Note: This may derive from the rhyming slang `onion rings', meaning `things'.

If you know your onions, you know a lot about a particular subject. She really knows her onions in the historical field. Note: This may derive from the rhyming slang `onion rings', meaning `things'.

If you know your onions, you are very knowledgeable about something. When it comes to history, she really knows her onions. He knows his onion in the formation of the stars.

You can use "Know your onions" to express that someone has a deep understanding or knowledge about a particular subject or topic. It emphasizes expertise and competence. For example, if someone is highly knowledgeable about cooking, you might say, 'He really knows his onions when it comes to cooking.'